Home / 82,480.18-123,732.45-29,877.40

Finding the Fourth Proportional to 82,480.18, 123,732.45 and 29,877.40

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Solution

The fourth proportional to 82,480.18, 123,732.45 and 29,877.40 is: 44,820.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,480.18 : 123,732.45 = 29,877.40 : x
  2. Step 2: Convert to fraction form
    82,480.18/123,732.45 = 29,877.40/x
  3. Step 3: Cross multiply
    82,480.18x = 123,732.45 × 29,877.40
  4. Step 4: Simplify right side
    82,480.18x = 3,696,803,901.63
  5. Step 5: Solve for x
    x = 3,696,803,901.63/82,480.18
  6. Step 6: Final answer
    x = 44,820.51

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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.