Home / 90,752.64-136,082.04-40,790.04

Finding the Fourth Proportional to 90,752.64, 136,082.04 and 40,790.04

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Solution

The fourth proportional to 90,752.64, 136,082.04 and 40,790.04 is: 61,163.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,752.64 : 136,082.04 = 40,790.04 : x
  2. Step 2: Convert to fraction form
    90,752.64/136,082.04 = 40,790.04/x
  3. Step 3: Cross multiply
    90,752.64x = 136,082.04 × 40,790.04
  4. Step 4: Simplify right side
    90,752.64x = 5,550,791,854.88
  5. Step 5: Solve for x
    x = 5,550,791,854.88/90,752.64
  6. Step 6: Final answer
    x = 61,163.97

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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.