Home / 82,404.72-123,582.78-42,941.52

Finding the Fourth Proportional to 82,404.72, 123,582.78 and 42,941.52

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Solution

The fourth proportional to 82,404.72, 123,582.78 and 42,941.52 is: 64,399.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,404.72 : 123,582.78 = 42,941.52 : x
  2. Step 2: Convert to fraction form
    82,404.72/123,582.78 = 42,941.52/x
  3. Step 3: Cross multiply
    82,404.72x = 123,582.78 × 42,941.52
  4. Step 4: Simplify right side
    82,404.72x = 5,306,832,419.03
  5. Step 5: Solve for x
    x = 5,306,832,419.03/82,404.72
  6. Step 6: Final answer
    x = 64,399.62

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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.