Home / 80,759.39-121,158.25-25,355.39

Finding the Fourth Proportional to 80,759.39, 121,158.25 and 25,355.39

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Solution

The fourth proportional to 80,759.39, 121,158.25 and 25,355.39 is: 38,039.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,759.39 : 121,158.25 = 25,355.39 : x
  2. Step 2: Convert to fraction form
    80,759.39/121,158.25 = 25,355.39/x
  3. Step 3: Cross multiply
    80,759.39x = 121,158.25 × 25,355.39
  4. Step 4: Simplify right side
    80,759.39x = 3,072,014,011.29
  5. Step 5: Solve for x
    x = 3,072,014,011.29/80,759.39
  6. Step 6: Final answer
    x = 38,039.10

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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.