Home / 90,688.59-136,033.20-31,524.75

Finding the Fourth Proportional to 90,688.59, 136,033.20 and 31,524.75

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Solution

The fourth proportional to 90,688.59, 136,033.20 and 31,524.75 is: 47,287.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,688.59 : 136,033.20 = 31,524.75 : x
  2. Step 2: Convert to fraction form
    90,688.59/136,033.20 = 31,524.75/x
  3. Step 3: Cross multiply
    90,688.59x = 136,033.20 × 31,524.75
  4. Step 4: Simplify right side
    90,688.59x = 4,288,412,621.70
  5. Step 5: Solve for x
    x = 4,288,412,621.70/90,688.59
  6. Step 6: Final answer
    x = 47,287.23

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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.