Home / 87,269.45-130,904.17-57,681.16

Finding the Fourth Proportional to 87,269.45, 130,904.17 and 57,681.16

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Solution

The fourth proportional to 87,269.45, 130,904.17 and 57,681.16 is: 86,521.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,269.45 : 130,904.17 = 57,681.16 : x
  2. Step 2: Convert to fraction form
    87,269.45/130,904.17 = 57,681.16/x
  3. Step 3: Cross multiply
    87,269.45x = 130,904.17 × 57,681.16
  4. Step 4: Simplify right side
    87,269.45x = 7,550,703,902.97
  5. Step 5: Solve for x
    x = 7,550,703,902.97/87,269.45
  6. Step 6: Final answer
    x = 86,521.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.