Home / 80,736.81-121,111.40-24,581.72

Finding the Fourth Proportional to 80,736.81, 121,111.40 and 24,581.72

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Solution

The fourth proportional to 80,736.81, 121,111.40 and 24,581.72 is: 36,874.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,736.81 : 121,111.40 = 24,581.72 : x
  2. Step 2: Convert to fraction form
    80,736.81/121,111.40 = 24,581.72/x
  3. Step 3: Cross multiply
    80,736.81x = 121,111.40 × 24,581.72
  4. Step 4: Simplify right side
    80,736.81x = 2,977,126,523.61
  5. Step 5: Solve for x
    x = 2,977,126,523.61/80,736.81
  6. Step 6: Final answer
    x = 36,874.46

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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.