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Finding the Fourth Proportional to 63,679.12, 87,850.88 and 38,532.40

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Solution

The fourth proportional to 63,679.12, 87,850.88 and 38,532.40 is: 53,158.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,679.12 : 87,850.88 = 38,532.40 : x
  2. Step 2: Convert to fraction form
    63,679.12/87,850.88 = 38,532.40/x
  3. Step 3: Cross multiply
    63,679.12x = 87,850.88 × 38,532.40
  4. Step 4: Simplify right side
    63,679.12x = 3,385,105,248.51
  5. Step 5: Solve for x
    x = 3,385,105,248.51/63,679.12
  6. Step 6: Final answer
    x = 53,158.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.