Home / 77,385.32-116,077.98-21,974.12

Finding the Fourth Proportional to 77,385.32, 116,077.98 and 21,974.12

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Solution

The fourth proportional to 77,385.32, 116,077.98 and 21,974.12 is: 32,961.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,385.32 : 116,077.98 = 21,974.12 : x
  2. Step 2: Convert to fraction form
    77,385.32/116,077.98 = 21,974.12/x
  3. Step 3: Cross multiply
    77,385.32x = 116,077.98 × 21,974.12
  4. Step 4: Simplify right side
    77,385.32x = 2,550,711,461.88
  5. Step 5: Solve for x
    x = 2,550,711,461.88/77,385.32
  6. Step 6: Final answer
    x = 32,961.18

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Similar ratio
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1.5x scale

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.