Home / 87,047.40-130,614.30-49,636.20

Finding the Fourth Proportional to 87,047.40, 130,614.30 and 49,636.20

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Solution

The fourth proportional to 87,047.40, 130,614.30 and 49,636.20 is: 74,478.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,047.40 : 130,614.30 = 49,636.20 : x
  2. Step 2: Convert to fraction form
    87,047.40/130,614.30 = 49,636.20/x
  3. Step 3: Cross multiply
    87,047.40x = 130,614.30 × 49,636.20
  4. Step 4: Simplify right side
    87,047.40x = 6,483,197,517.66
  5. Step 5: Solve for x
    x = 6,483,197,517.66/87,047.40
  6. Step 6: Final answer
    x = 74,478.93

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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.