Home / 87,510.14-120,779.07-50,711.20

Finding the Fourth Proportional to 87,510.14, 120,779.07 and 50,711.20

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Solution

The fourth proportional to 87,510.14, 120,779.07 and 50,711.20 is: 69,990.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,510.14 : 120,779.07 = 50,711.20 : x
  2. Step 2: Convert to fraction form
    87,510.14/120,779.07 = 50,711.20/x
  3. Step 3: Cross multiply
    87,510.14x = 120,779.07 × 50,711.20
  4. Step 4: Simplify right side
    87,510.14x = 6,124,850,717.13
  5. Step 5: Solve for x
    x = 6,124,850,717.13/87,510.14
  6. Step 6: Final answer
    x = 69,990.18

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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.