Home / 87,158.84-120,263.20-58,520.07

Finding the Fourth Proportional to 87,158.84, 120,263.20 and 58,520.07

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Solution

The fourth proportional to 87,158.84, 120,263.20 and 58,520.07 is: 80,746.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,158.84 : 120,263.20 = 58,520.07 : x
  2. Step 2: Convert to fraction form
    87,158.84/120,263.20 = 58,520.07/x
  3. Step 3: Cross multiply
    87,158.84x = 120,263.20 × 58,520.07
  4. Step 4: Simplify right side
    87,158.84x = 7,037,810,736.12
  5. Step 5: Solve for x
    x = 7,037,810,736.12/87,158.84
  6. Step 6: Final answer
    x = 80,746.96

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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.