Home / 81,162.72-121,732.98-24,235.74

Finding the Fourth Proportional to 81,162.72, 121,732.98 and 24,235.74

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Solution

The fourth proportional to 81,162.72, 121,732.98 and 24,235.74 is: 36,350.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,162.72 : 121,732.98 = 24,235.74 : x
  2. Step 2: Convert to fraction form
    81,162.72/121,732.98 = 24,235.74/x
  3. Step 3: Cross multiply
    81,162.72x = 121,732.98 × 24,235.74
  4. Step 4: Simplify right side
    81,162.72x = 2,950,288,852.71
  5. Step 5: Solve for x
    x = 2,950,288,852.71/81,162.72
  6. Step 6: Final answer
    x = 36,350.30

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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.