Home / 80,891.04-121,225.92-51,329.64

Finding the Fourth Proportional to 80,891.04, 121,225.92 and 51,329.64

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Solution

The fourth proportional to 80,891.04, 121,225.92 and 51,329.64 is: 76,924.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,891.04 : 121,225.92 = 51,329.64 : x
  2. Step 2: Convert to fraction form
    80,891.04/121,225.92 = 51,329.64/x
  3. Step 3: Cross multiply
    80,891.04x = 121,225.92 × 51,329.64
  4. Step 4: Simplify right side
    80,891.04x = 6,222,482,832.27
  5. Step 5: Solve for x
    x = 6,222,482,832.27/80,891.04
  6. Step 6: Final answer
    x = 76,924.25

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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.