Home / 71,963.52-99,309.47-40,132.46

Finding the Fourth Proportional to 71,963.52, 99,309.47 and 40,132.46

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Solution

The fourth proportional to 71,963.52, 99,309.47 and 40,132.46 is: 55,382.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,963.52 : 99,309.47 = 40,132.46 : x
  2. Step 2: Convert to fraction form
    71,963.52/99,309.47 = 40,132.46/x
  3. Step 3: Cross multiply
    71,963.52x = 99,309.47 × 40,132.46
  4. Step 4: Simplify right side
    71,963.52x = 3,985,532,635.19
  5. Step 5: Solve for x
    x = 3,985,532,635.19/71,963.52
  6. Step 6: Final answer
    x = 55,382.68

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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.