Home / 84,920.39-127,380.89-25,756.57

Finding the Fourth Proportional to 84,920.39, 127,380.89 and 25,756.57

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Solution

The fourth proportional to 84,920.39, 127,380.89 and 25,756.57 is: 38,634.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,920.39 : 127,380.89 = 25,756.57 : x
  2. Step 2: Convert to fraction form
    84,920.39/127,380.89 = 25,756.57/x
  3. Step 3: Cross multiply
    84,920.39x = 127,380.89 × 25,756.57
  4. Step 4: Simplify right side
    84,920.39x = 3,280,894,809.95
  5. Step 5: Solve for x
    x = 3,280,894,809.95/84,920.39
  6. Step 6: Final answer
    x = 38,634.95

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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.