Home / 57,130.05-78,864.92-37,760.62

Finding the Fourth Proportional to 57,130.05, 78,864.92 and 37,760.62

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Solution

The fourth proportional to 57,130.05, 78,864.92 and 37,760.62 is: 52,126.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,130.05 : 78,864.92 = 37,760.62 : x
  2. Step 2: Convert to fraction form
    57,130.05/78,864.92 = 37,760.62/x
  3. Step 3: Cross multiply
    57,130.05x = 78,864.92 × 37,760.62
  4. Step 4: Simplify right side
    57,130.05x = 2,977,988,275.45
  5. Step 5: Solve for x
    x = 2,977,988,275.45/57,130.05
  6. Step 6: Final answer
    x = 52,126.48

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1.5x scale

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.