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Finding the Fourth Proportional to 69,164.32, 103,750.17 and 21,783.12

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Solution

The fourth proportional to 69,164.32, 103,750.17 and 21,783.12 is: 32,675.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,164.32 : 103,750.17 = 21,783.12 : x
  2. Step 2: Convert to fraction form
    69,164.32/103,750.17 = 21,783.12/x
  3. Step 3: Cross multiply
    69,164.32x = 103,750.17 × 21,783.12
  4. Step 4: Simplify right side
    69,164.32x = 2,260,001,884.38
  5. Step 5: Solve for x
    x = 2,260,001,884.38/69,164.32
  6. Step 6: Final answer
    x = 32,675.83

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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.