Home / 88,269.07-121,811.55-47,982.78

Finding the Fourth Proportional to 88,269.07, 121,811.55 and 47,982.78

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Solution

The fourth proportional to 88,269.07, 121,811.55 and 47,982.78 is: 66,216.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,269.07 : 121,811.55 = 47,982.78 : x
  2. Step 2: Convert to fraction form
    88,269.07/121,811.55 = 47,982.78/x
  3. Step 3: Cross multiply
    88,269.07x = 121,811.55 × 47,982.78
  4. Step 4: Simplify right side
    88,269.07x = 5,844,856,805.11
  5. Step 5: Solve for x
    x = 5,844,856,805.11/88,269.07
  6. Step 6: Final answer
    x = 66,216.36

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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.