Home / 39,876.52-54,631.10-38,381.80

Finding the Fourth Proportional to 39,876.52, 54,631.10 and 38,381.80

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Solution

The fourth proportional to 39,876.52, 54,631.10 and 38,381.80 is: 52,583.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,876.52 : 54,631.10 = 38,381.80 : x
  2. Step 2: Convert to fraction form
    39,876.52/54,631.10 = 38,381.80/x
  3. Step 3: Cross multiply
    39,876.52x = 54,631.10 × 38,381.80
  4. Step 4: Simplify right side
    39,876.52x = 2,096,839,953.98
  5. Step 5: Solve for x
    x = 2,096,839,953.98/39,876.52
  6. Step 6: Final answer
    x = 52,583.32

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.