Home / 87,191.95-120,361.45-58,935.91

Finding the Fourth Proportional to 87,191.95, 120,361.45 and 58,935.91

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Solution

The fourth proportional to 87,191.95, 120,361.45 and 58,935.91 is: 81,356.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,191.95 : 120,361.45 = 58,935.91 : x
  2. Step 2: Convert to fraction form
    87,191.95/120,361.45 = 58,935.91/x
  3. Step 3: Cross multiply
    87,191.95x = 120,361.45 × 58,935.91
  4. Step 4: Simplify right side
    87,191.95x = 7,093,610,982.86
  5. Step 5: Solve for x
    x = 7,093,610,982.86/87,191.95
  6. Step 6: Final answer
    x = 81,356.26

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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.