Home / 87,243.27-130,837.15-28,065.16

Finding the Fourth Proportional to 87,243.27, 130,837.15 and 28,065.16

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Solution

The fourth proportional to 87,243.27, 130,837.15 and 28,065.16 is: 42,088.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,243.27 : 130,837.15 = 28,065.16 : x
  2. Step 2: Convert to fraction form
    87,243.27/130,837.15 = 28,065.16/x
  3. Step 3: Cross multiply
    87,243.27x = 130,837.15 × 28,065.16
  4. Step 4: Simplify right side
    87,243.27x = 3,671,965,548.69
  5. Step 5: Solve for x
    x = 3,671,965,548.69/87,243.27
  6. Step 6: Final answer
    x = 42,088.81

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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.