Home / 90,712.14-125,139.15-58,891.02

Finding the Fourth Proportional to 90,712.14, 125,139.15 and 58,891.02

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Solution

The fourth proportional to 90,712.14, 125,139.15 and 58,891.02 is: 81,241.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,712.14 : 125,139.15 = 58,891.02 : x
  2. Step 2: Convert to fraction form
    90,712.14/125,139.15 = 58,891.02/x
  3. Step 3: Cross multiply
    90,712.14x = 125,139.15 × 58,891.02
  4. Step 4: Simplify right side
    90,712.14x = 7,369,572,185.43
  5. Step 5: Solve for x
    x = 7,369,572,185.43/90,712.14
  6. Step 6: Final answer
    x = 81,241.30

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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.