Home / 82,312.73-123,412.92-39,595.61

Finding the Fourth Proportional to 82,312.73, 123,412.92 and 39,595.61

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Solution

The fourth proportional to 82,312.73, 123,412.92 and 39,595.61 is: 59,366.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,312.73 : 123,412.92 = 39,595.61 : x
  2. Step 2: Convert to fraction form
    82,312.73/123,412.92 = 39,595.61/x
  3. Step 3: Cross multiply
    82,312.73x = 123,412.92 × 39,595.61
  4. Step 4: Simplify right side
    82,312.73x = 4,886,609,849.28
  5. Step 5: Solve for x
    x = 4,886,609,849.28/82,312.73
  6. Step 6: Final answer
    x = 59,366.39

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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.