Home / 82,810.13-124,235.85-38,468.30

Finding the Fourth Proportional to 82,810.13, 124,235.85 and 38,468.30

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Solution

The fourth proportional to 82,810.13, 124,235.85 and 38,468.30 is: 57,712.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,810.13 : 124,235.85 = 38,468.30 : x
  2. Step 2: Convert to fraction form
    82,810.13/124,235.85 = 38,468.30/x
  3. Step 3: Cross multiply
    82,810.13x = 124,235.85 × 38,468.30
  4. Step 4: Simplify right side
    82,810.13x = 4,779,141,948.56
  5. Step 5: Solve for x
    x = 4,779,141,948.56/82,810.13
  6. Step 6: Final answer
    x = 57,712.04

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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.