Home / 90,713.50-136,023.60-40,750.74

Finding the Fourth Proportional to 90,713.50, 136,023.60 and 40,750.74

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Solution

The fourth proportional to 90,713.50, 136,023.60 and 40,750.74 is: 61,105.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,713.50 : 136,023.60 = 40,750.74 : x
  2. Step 2: Convert to fraction form
    90,713.50/136,023.60 = 40,750.74/x
  3. Step 3: Cross multiply
    90,713.50x = 136,023.60 × 40,750.74
  4. Step 4: Simplify right side
    90,713.50x = 5,543,062,357.46
  5. Step 5: Solve for x
    x = 5,543,062,357.46/90,713.50
  6. Step 6: Final answer
    x = 61,105.15

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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.