Home / 71,153.64-98,118.54-61,115.40

Finding the Fourth Proportional to 71,153.64, 98,118.54 and 61,115.40

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Solution

The fourth proportional to 71,153.64, 98,118.54 and 61,115.40 is: 84,276.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,153.64 : 98,118.54 = 61,115.40 : x
  2. Step 2: Convert to fraction form
    71,153.64/98,118.54 = 61,115.40/x
  3. Step 3: Cross multiply
    71,153.64x = 98,118.54 × 61,115.40
  4. Step 4: Simplify right side
    71,153.64x = 5,996,553,819.52
  5. Step 5: Solve for x
    x = 5,996,553,819.52/71,153.64
  6. Step 6: Final answer
    x = 84,276.14

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.