Home / 81,000.20-121,484.64-24,826.70

Finding the Fourth Proportional to 81,000.20, 121,484.64 and 24,826.70

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Solution

The fourth proportional to 81,000.20, 121,484.64 and 24,826.70 is: 37,235.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,000.20 : 121,484.64 = 24,826.70 : x
  2. Step 2: Convert to fraction form
    81,000.20/121,484.64 = 24,826.70/x
  3. Step 3: Cross multiply
    81,000.20x = 121,484.64 × 24,826.70
  4. Step 4: Simplify right side
    81,000.20x = 3,016,062,711.89
  5. Step 5: Solve for x
    x = 3,016,062,711.89/81,000.20
  6. Step 6: Final answer
    x = 37,235.25

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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.