Home / 80,739.81-121,115.88-24,584.72

Finding the Fourth Proportional to 80,739.81, 121,115.88 and 24,584.72

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Solution

The fourth proportional to 80,739.81, 121,115.88 and 24,584.72 is: 36,878.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,739.81 : 121,115.88 = 24,584.72 : x
  2. Step 2: Convert to fraction form
    80,739.81/121,115.88 = 24,584.72/x
  3. Step 3: Cross multiply
    80,739.81x = 121,115.88 × 24,584.72
  4. Step 4: Simplify right side
    80,739.81x = 2,977,599,391.77
  5. Step 5: Solve for x
    x = 2,977,599,391.77/80,739.81
  6. Step 6: Final answer
    x = 36,878.95

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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.