Home / 87,200.20-130,541.10-57,651.40

Finding the Fourth Proportional to 87,200.20, 130,541.10 and 57,651.40

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Solution

The fourth proportional to 87,200.20, 130,541.10 and 57,651.40 is: 86,305.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,200.20 : 130,541.10 = 57,651.40 : x
  2. Step 2: Convert to fraction form
    87,200.20/130,541.10 = 57,651.40/x
  3. Step 3: Cross multiply
    87,200.20x = 130,541.10 × 57,651.40
  4. Step 4: Simplify right side
    87,200.20x = 7,525,877,172.54
  5. Step 5: Solve for x
    x = 7,525,877,172.54/87,200.20
  6. Step 6: Final answer
    x = 86,305.73

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1.5x scale

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.