Home / 80,925.90-121,389.97-31,008.52

Finding the Fourth Proportional to 80,925.90, 121,389.97 and 31,008.52

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Solution

The fourth proportional to 80,925.90, 121,389.97 and 31,008.52 is: 46,513.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,925.90 : 121,389.97 = 31,008.52 : x
  2. Step 2: Convert to fraction form
    80,925.90/121,389.97 = 31,008.52/x
  3. Step 3: Cross multiply
    80,925.90x = 121,389.97 × 31,008.52
  4. Step 4: Simplify right side
    80,925.90x = 3,764,123,312.54
  5. Step 5: Solve for x
    x = 3,764,123,312.54/80,925.90
  6. Step 6: Final answer
    x = 46,513.21

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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.