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Finding the Fourth Proportional to 63,420.12, 95,130.18 and 21,867.12

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Solution

The fourth proportional to 63,420.12, 95,130.18 and 21,867.12 is: 32,800.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,420.12 : 95,130.18 = 21,867.12 : x
  2. Step 2: Convert to fraction form
    63,420.12/95,130.18 = 21,867.12/x
  3. Step 3: Cross multiply
    63,420.12x = 95,130.18 × 21,867.12
  4. Step 4: Simplify right side
    63,420.12x = 2,080,223,061.68
  5. Step 5: Solve for x
    x = 2,080,223,061.68/63,420.12
  6. Step 6: Final answer
    x = 32,800.68

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.