Home / 87,340.20-130,896.90-40,493.40

Finding the Fourth Proportional to 87,340.20, 130,896.90 and 40,493.40

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Solution

The fourth proportional to 87,340.20, 130,896.90 and 40,493.40 is: 60,687.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,340.20 : 130,896.90 = 40,493.40 : x
  2. Step 2: Convert to fraction form
    87,340.20/130,896.90 = 40,493.40/x
  3. Step 3: Cross multiply
    87,340.20x = 130,896.90 × 40,493.40
  4. Step 4: Simplify right side
    87,340.20x = 5,300,460,530.46
  5. Step 5: Solve for x
    x = 5,300,460,530.46/87,340.20
  6. Step 6: Final answer
    x = 60,687.52

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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.