Home / 86,530.10-129,819.45-36,634.10

Finding the Fourth Proportional to 86,530.10, 129,819.45 and 36,634.10

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Solution

The fourth proportional to 86,530.10, 129,819.45 and 36,634.10 is: 54,961.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,530.10 : 129,819.45 = 36,634.10 : x
  2. Step 2: Convert to fraction form
    86,530.10/129,819.45 = 36,634.10/x
  3. Step 3: Cross multiply
    86,530.10x = 129,819.45 × 36,634.10
  4. Step 4: Simplify right side
    86,530.10x = 4,755,818,713.25
  5. Step 5: Solve for x
    x = 4,755,818,713.25/86,530.10
  6. Step 6: Final answer
    x = 54,961.44

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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.