Home / 81,322.02-112,123.17-62,225.46

Finding the Fourth Proportional to 81,322.02, 112,123.17 and 62,225.46

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Solution

The fourth proportional to 81,322.02, 112,123.17 and 62,225.46 is: 85,793.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,322.02 : 112,123.17 = 62,225.46 : x
  2. Step 2: Convert to fraction form
    81,322.02/112,123.17 = 62,225.46/x
  3. Step 3: Cross multiply
    81,322.02x = 112,123.17 × 62,225.46
  4. Step 4: Simplify right side
    81,322.02x = 6,976,915,829.91
  5. Step 5: Solve for x
    x = 6,976,915,829.91/81,322.02
  6. Step 6: Final answer
    x = 85,793.69

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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.