Home / 87,082.04-120,224.32-66,899.28

Finding the Fourth Proportional to 87,082.04, 120,224.32 and 66,899.28

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Solution

The fourth proportional to 87,082.04, 120,224.32 and 66,899.28 is: 92,360.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,082.04 : 120,224.32 = 66,899.28 : x
  2. Step 2: Convert to fraction form
    87,082.04/120,224.32 = 66,899.28/x
  3. Step 3: Cross multiply
    87,082.04x = 120,224.32 × 66,899.28
  4. Step 4: Simplify right side
    87,082.04x = 8,042,920,446.49
  5. Step 5: Solve for x
    x = 8,042,920,446.49/87,082.04
  6. Step 6: Final answer
    x = 92,360.27

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1.5x scale

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.