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Finding the Fourth Proportional to 61,148.90, 91,515.98 and 36,542.18

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Solution

The fourth proportional to 61,148.90, 91,515.98 and 36,542.18 is: 54,689.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,148.90 : 91,515.98 = 36,542.18 : x
  2. Step 2: Convert to fraction form
    61,148.90/91,515.98 = 36,542.18/x
  3. Step 3: Cross multiply
    61,148.90x = 91,515.98 × 36,542.18
  4. Step 4: Simplify right side
    61,148.90x = 3,344,193,414.04
  5. Step 5: Solve for x
    x = 3,344,193,414.04/61,148.90
  6. Step 6: Final answer
    x = 54,689.35

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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.