Home / 80,925.26-121,389.06-31,007.90

Finding the Fourth Proportional to 80,925.26, 121,389.06 and 31,007.90

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Solution

The fourth proportional to 80,925.26, 121,389.06 and 31,007.90 is: 46,512.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,925.26 : 121,389.06 = 31,007.90 : x
  2. Step 2: Convert to fraction form
    80,925.26/121,389.06 = 31,007.90/x
  3. Step 3: Cross multiply
    80,925.26x = 121,389.06 × 31,007.90
  4. Step 4: Simplify right side
    80,925.26x = 3,764,019,226.63
  5. Step 5: Solve for x
    x = 3,764,019,226.63/80,925.26
  6. Step 6: Final answer
    x = 46,512.29

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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.