Home / 57,114.72-78,812.87-34,139.97

Finding the Fourth Proportional to 57,114.72, 78,812.87 and 34,139.97

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Solution

The fourth proportional to 57,114.72, 78,812.87 and 34,139.97 is: 47,109.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,114.72 : 78,812.87 = 34,139.97 : x
  2. Step 2: Convert to fraction form
    57,114.72/78,812.87 = 34,139.97/x
  3. Step 3: Cross multiply
    57,114.72x = 78,812.87 × 34,139.97
  4. Step 4: Simplify right side
    57,114.72x = 2,690,668,846.71
  5. Step 5: Solve for x
    x = 2,690,668,846.71/57,114.72
  6. Step 6: Final answer
    x = 47,109.90

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.