Home / 51,898.53-77,877.42-20,311.17

Finding the Fourth Proportional to 51,898.53, 77,877.42 and 20,311.17

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Solution

The fourth proportional to 51,898.53, 77,877.42 and 20,311.17 is: 30,478.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,898.53 : 77,877.42 = 20,311.17 : x
  2. Step 2: Convert to fraction form
    51,898.53/77,877.42 = 20,311.17/x
  3. Step 3: Cross multiply
    51,898.53x = 77,877.42 × 20,311.17
  4. Step 4: Simplify right side
    51,898.53x = 1,581,781,516.78
  5. Step 5: Solve for x
    x = 1,581,781,516.78/51,898.53
  6. Step 6: Final answer
    x = 30,478.35

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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.