Home / 80,931.92-121,473.72-49,827.92

Finding the Fourth Proportional to 80,931.92, 121,473.72 and 49,827.92

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Solution

The fourth proportional to 80,931.92, 121,473.72 and 49,827.92 is: 74,788.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,931.92 : 121,473.72 = 49,827.92 : x
  2. Step 2: Convert to fraction form
    80,931.92/121,473.72 = 49,827.92/x
  3. Step 3: Cross multiply
    80,931.92x = 121,473.72 × 49,827.92
  4. Step 4: Simplify right side
    80,931.92x = 6,052,782,802.26
  5. Step 5: Solve for x
    x = 6,052,782,802.26/80,931.92
  6. Step 6: Final answer
    x = 74,788.57

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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.