Home / 87,182.82-120,348.45-58,926.78

Finding the Fourth Proportional to 87,182.82, 120,348.45 and 58,926.78

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Solution

The fourth proportional to 87,182.82, 120,348.45 and 58,926.78 is: 81,343.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,182.82 : 120,348.45 = 58,926.78 : x
  2. Step 2: Convert to fraction form
    87,182.82/120,348.45 = 58,926.78/x
  3. Step 3: Cross multiply
    87,182.82x = 120,348.45 × 58,926.78
  4. Step 4: Simplify right side
    87,182.82x = 7,091,746,636.49
  5. Step 5: Solve for x
    x = 7,091,746,636.49/87,182.82
  6. Step 6: Final answer
    x = 81,343.40

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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.