Home / 87,330.80-130,911.68-28,126.28

Finding the Fourth Proportional to 87,330.80, 130,911.68 and 28,126.28

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Solution

The fourth proportional to 87,330.80, 130,911.68 and 28,126.28 is: 42,162.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,330.80 : 130,911.68 = 28,126.28 : x
  2. Step 2: Convert to fraction form
    87,330.80/130,911.68 = 28,126.28/x
  3. Step 3: Cross multiply
    87,330.80x = 130,911.68 × 28,126.28
  4. Step 4: Simplify right side
    87,330.80x = 3,682,058,566.95
  5. Step 5: Solve for x
    x = 3,682,058,566.95/87,330.80
  6. Step 6: Final answer
    x = 42,162.20

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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.