Home / 67,930.90-93,755.80-39,636.52

Finding the Fourth Proportional to 67,930.90, 93,755.80 and 39,636.52

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Solution

The fourth proportional to 67,930.90, 93,755.80 and 39,636.52 is: 54,704.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,930.90 : 93,755.80 = 39,636.52 : x
  2. Step 2: Convert to fraction form
    67,930.90/93,755.80 = 39,636.52/x
  3. Step 3: Cross multiply
    67,930.90x = 93,755.80 × 39,636.52
  4. Step 4: Simplify right side
    67,930.90x = 3,716,153,641.82
  5. Step 5: Solve for x
    x = 3,716,153,641.82/67,930.90
  6. Step 6: Final answer
    x = 54,704.91

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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.