Home / 82,471.10-123,698.45-38,097.21

Finding the Fourth Proportional to 82,471.10, 123,698.45 and 38,097.21

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Solution

The fourth proportional to 82,471.10, 123,698.45 and 38,097.21 is: 57,142.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,471.10 : 123,698.45 = 38,097.21 : x
  2. Step 2: Convert to fraction form
    82,471.10/123,698.45 = 38,097.21/x
  3. Step 3: Cross multiply
    82,471.10x = 123,698.45 × 38,097.21
  4. Step 4: Simplify right side
    82,471.10x = 4,712,565,635.84
  5. Step 5: Solve for x
    x = 4,712,565,635.84/82,471.10
  6. Step 6: Final answer
    x = 57,142.03

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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.