Home / 55,932.10-83,898.15-20,869.90

Finding the Fourth Proportional to 55,932.10, 83,898.15 and 20,869.90

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Solution

The fourth proportional to 55,932.10, 83,898.15 and 20,869.90 is: 31,304.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,932.10 : 83,898.15 = 20,869.90 : x
  2. Step 2: Convert to fraction form
    55,932.10/83,898.15 = 20,869.90/x
  3. Step 3: Cross multiply
    55,932.10x = 83,898.15 × 20,869.90
  4. Step 4: Simplify right side
    55,932.10x = 1,750,946,000.69
  5. Step 5: Solve for x
    x = 1,750,946,000.69/55,932.10
  6. Step 6: Final answer
    x = 31,304.85

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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.