Home / 88,233.40-121,763.28-47,947.78

Finding the Fourth Proportional to 88,233.40, 121,763.28 and 47,947.78

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Solution

The fourth proportional to 88,233.40, 121,763.28 and 47,947.78 is: 66,168.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,233.40 : 121,763.28 = 47,947.78 : x
  2. Step 2: Convert to fraction form
    88,233.40/121,763.28 = 47,947.78/x
  3. Step 3: Cross multiply
    88,233.40x = 121,763.28 × 47,947.78
  4. Step 4: Simplify right side
    88,233.40x = 5,838,278,961.52
  5. Step 5: Solve for x
    x = 5,838,278,961.52/88,233.40
  6. Step 6: Final answer
    x = 66,168.58

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.