Home / 90,862.20-125,442-60,747.20

Finding the Fourth Proportional to 90,862.20, 125,442 and 60,747.20

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Solution

The fourth proportional to 90,862.20, 125,442 and 60,747.20 is: 83,866.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,862.20 : 125,442 = 60,747.20 : x
  2. Step 2: Convert to fraction form
    90,862.20/125,442 = 60,747.20/x
  3. Step 3: Cross multiply
    90,862.20x = 125,442 × 60,747.20
  4. Step 4: Simplify right side
    90,862.20x = 7,620,250,262.40
  5. Step 5: Solve for x
    x = 7,620,250,262.40/90,862.20
  6. Step 6: Final answer
    x = 83,866.01

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.