Home / 55,177.06-82,807.17-40,423.78

Finding the Fourth Proportional to 55,177.06, 82,807.17 and 40,423.78

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Solution

The fourth proportional to 55,177.06, 82,807.17 and 40,423.78 is: 60,666.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,177.06 : 82,807.17 = 40,423.78 : x
  2. Step 2: Convert to fraction form
    55,177.06/82,807.17 = 40,423.78/x
  3. Step 3: Cross multiply
    55,177.06x = 82,807.17 × 40,423.78
  4. Step 4: Simplify right side
    55,177.06x = 3,347,378,822.50
  5. Step 5: Solve for x
    x = 3,347,378,822.50/55,177.06
  6. Step 6: Final answer
    x = 60,666.13

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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.