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Finding the Fourth Proportional to 66,532.48, 91,821.12 and 38,254.72

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Solution

The fourth proportional to 66,532.48, 91,821.12 and 38,254.72 is: 52,795.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,532.48 : 91,821.12 = 38,254.72 : x
  2. Step 2: Convert to fraction form
    66,532.48/91,821.12 = 38,254.72/x
  3. Step 3: Cross multiply
    66,532.48x = 91,821.12 × 38,254.72
  4. Step 4: Simplify right side
    66,532.48x = 3,512,591,235.69
  5. Step 5: Solve for x
    x = 3,512,591,235.69/66,532.48
  6. Step 6: Final answer
    x = 52,795.13

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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.