Home / 88,235.40-121,766.04-47,949.78

Finding the Fourth Proportional to 88,235.40, 121,766.04 and 47,949.78

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Solution

The fourth proportional to 88,235.40, 121,766.04 and 47,949.78 is: 66,171.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,235.40 : 121,766.04 = 47,949.78 : x
  2. Step 2: Convert to fraction form
    88,235.40/121,766.04 = 47,949.78/x
  3. Step 3: Cross multiply
    88,235.40x = 121,766.04 × 47,949.78
  4. Step 4: Simplify right side
    88,235.40x = 5,838,654,829.47
  5. Step 5: Solve for x
    x = 5,838,654,829.47/88,235.40
  6. Step 6: Final answer
    x = 66,171.34

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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.