Home / 87,333.64-120,425.06-58,990.12

Finding the Fourth Proportional to 87,333.64, 120,425.06 and 58,990.12

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Solution

The fourth proportional to 87,333.64, 120,425.06 and 58,990.12 is: 81,341.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,333.64 : 120,425.06 = 58,990.12 : x
  2. Step 2: Convert to fraction form
    87,333.64/120,425.06 = 58,990.12/x
  3. Step 3: Cross multiply
    87,333.64x = 120,425.06 × 58,990.12
  4. Step 4: Simplify right side
    87,333.64x = 7,103,888,740.41
  5. Step 5: Solve for x
    x = 7,103,888,740.41/87,333.64
  6. Step 6: Final answer
    x = 81,341.95

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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.