Home / 87,045.81-130,585.05-27,865.59

Finding the Fourth Proportional to 87,045.81, 130,585.05 and 27,865.59

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Solution

The fourth proportional to 87,045.81, 130,585.05 and 27,865.59 is: 41,803.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,045.81 : 130,585.05 = 27,865.59 : x
  2. Step 2: Convert to fraction form
    87,045.81/130,585.05 = 27,865.59/x
  3. Step 3: Cross multiply
    87,045.81x = 130,585.05 × 27,865.59
  4. Step 4: Simplify right side
    87,045.81x = 3,638,829,463.43
  5. Step 5: Solve for x
    x = 3,638,829,463.43/87,045.81
  6. Step 6: Final answer
    x = 41,803.61

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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.