Home / 87,025.20-130,537.80-51,946.80

Finding the Fourth Proportional to 87,025.20, 130,537.80 and 51,946.80

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Solution

The fourth proportional to 87,025.20, 130,537.80 and 51,946.80 is: 77,920.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,025.20 : 130,537.80 = 51,946.80 : x
  2. Step 2: Convert to fraction form
    87,025.20/130,537.80 = 51,946.80/x
  3. Step 3: Cross multiply
    87,025.20x = 130,537.80 × 51,946.80
  4. Step 4: Simplify right side
    87,025.20x = 6,781,020,989.04
  5. Step 5: Solve for x
    x = 6,781,020,989.04/87,025.20
  6. Step 6: Final answer
    x = 77,920.20

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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.