Home / 80,937.12-121,423.72-24,785.12

Finding the Fourth Proportional to 80,937.12, 121,423.72 and 24,785.12

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Solution

The fourth proportional to 80,937.12, 121,423.72 and 24,785.12 is: 37,183.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,937.12 : 121,423.72 = 24,785.12 : x
  2. Step 2: Convert to fraction form
    80,937.12/121,423.72 = 24,785.12/x
  3. Step 3: Cross multiply
    80,937.12x = 121,423.72 × 24,785.12
  4. Step 4: Simplify right side
    80,937.12x = 3,009,501,471.05
  5. Step 5: Solve for x
    x = 3,009,501,471.05/80,937.12
  6. Step 6: Final answer
    x = 37,183.20

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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.