Home / 87,130.56-130,639.68-37,243.20

Finding the Fourth Proportional to 87,130.56, 130,639.68 and 37,243.20

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Solution

The fourth proportional to 87,130.56, 130,639.68 and 37,243.20 is: 55,840.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,130.56 : 130,639.68 = 37,243.20 : x
  2. Step 2: Convert to fraction form
    87,130.56/130,639.68 = 37,243.20/x
  3. Step 3: Cross multiply
    87,130.56x = 130,639.68 × 37,243.20
  4. Step 4: Simplify right side
    87,130.56x = 4,865,439,730.18
  5. Step 5: Solve for x
    x = 4,865,439,730.18/87,130.56
  6. Step 6: Final answer
    x = 55,840.79

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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.