Home / 71,966.54-99,306.95-40,137.53

Finding the Fourth Proportional to 71,966.54, 99,306.95 and 40,137.53

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Solution

The fourth proportional to 71,966.54, 99,306.95 and 40,137.53 is: 55,385.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,966.54 : 99,306.95 = 40,137.53 : x
  2. Step 2: Convert to fraction form
    71,966.54/99,306.95 = 40,137.53/x
  3. Step 3: Cross multiply
    71,966.54x = 99,306.95 × 40,137.53
  4. Step 4: Simplify right side
    71,966.54x = 3,985,934,987.61
  5. Step 5: Solve for x
    x = 3,985,934,987.61/71,966.54
  6. Step 6: Final answer
    x = 55,385.95

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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.