Home / 87,830.10-131,691.74-34,458.17

Finding the Fourth Proportional to 87,830.10, 131,691.74 and 34,458.17

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Solution

The fourth proportional to 87,830.10, 131,691.74 and 34,458.17 is: 51,666.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,830.10 : 131,691.74 = 34,458.17 : x
  2. Step 2: Convert to fraction form
    87,830.10/131,691.74 = 34,458.17/x
  3. Step 3: Cross multiply
    87,830.10x = 131,691.74 × 34,458.17
  4. Step 4: Simplify right side
    87,830.10x = 4,537,855,533.77
  5. Step 5: Solve for x
    x = 4,537,855,533.77/87,830.10
  6. Step 6: Final answer
    x = 51,666.29

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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.