Home / 90,763.20-125,266.88-65,353.76

Finding the Fourth Proportional to 90,763.20, 125,266.88 and 65,353.76

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Solution

The fourth proportional to 90,763.20, 125,266.88 and 65,353.76 is: 90,198.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,763.20 : 125,266.88 = 65,353.76 : x
  2. Step 2: Convert to fraction form
    90,763.20/125,266.88 = 65,353.76/x
  3. Step 3: Cross multiply
    90,763.20x = 125,266.88 × 65,353.76
  4. Step 4: Simplify right side
    90,763.20x = 8,186,661,611.47
  5. Step 5: Solve for x
    x = 8,186,661,611.47/90,763.20
  6. Step 6: Final answer
    x = 90,198.03

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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.