Home / 84,366.90-126,640.35-36,359.28

Finding the Fourth Proportional to 84,366.90, 126,640.35 and 36,359.28

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Solution

The fourth proportional to 84,366.90, 126,640.35 and 36,359.28 is: 54,577.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,366.90 : 126,640.35 = 36,359.28 : x
  2. Step 2: Convert to fraction form
    84,366.90/126,640.35 = 36,359.28/x
  3. Step 3: Cross multiply
    84,366.90x = 126,640.35 × 36,359.28
  4. Step 4: Simplify right side
    84,366.90x = 4,604,551,944.95
  5. Step 5: Solve for x
    x = 4,604,551,944.95/84,366.90
  6. Step 6: Final answer
    x = 54,577.71

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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.