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Finding the Fourth Proportional to 66,955.14, 100,432.71 and 25,402.14

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Solution

The fourth proportional to 66,955.14, 100,432.71 and 25,402.14 is: 38,103.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,955.14 : 100,432.71 = 25,402.14 : x
  2. Step 2: Convert to fraction form
    66,955.14/100,432.71 = 25,402.14/x
  3. Step 3: Cross multiply
    66,955.14x = 100,432.71 × 25,402.14
  4. Step 4: Simplify right side
    66,955.14x = 2,551,205,760.00
  5. Step 5: Solve for x
    x = 2,551,205,760.00/66,955.14
  6. Step 6: Final answer
    x = 38,103.21

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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.