Home / 87,298.34-130,947.51-31,136.18

Finding the Fourth Proportional to 87,298.34, 130,947.51 and 31,136.18

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Solution

The fourth proportional to 87,298.34, 130,947.51 and 31,136.18 is: 46,704.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,298.34 : 130,947.51 = 31,136.18 : x
  2. Step 2: Convert to fraction form
    87,298.34/130,947.51 = 31,136.18/x
  3. Step 3: Cross multiply
    87,298.34x = 130,947.51 × 31,136.18
  4. Step 4: Simplify right side
    87,298.34x = 4,077,204,587.17
  5. Step 5: Solve for x
    x = 4,077,204,587.17/87,298.34
  6. Step 6: Final answer
    x = 46,704.27

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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.