Home / 88,177.20-121,684.80-47,891.64

Finding the Fourth Proportional to 88,177.20, 121,684.80 and 47,891.64

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Solution

The fourth proportional to 88,177.20, 121,684.80 and 47,891.64 is: 66,090.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,177.20 : 121,684.80 = 47,891.64 : x
  2. Step 2: Convert to fraction form
    88,177.20/121,684.80 = 47,891.64/x
  3. Step 3: Cross multiply
    88,177.20x = 121,684.80 × 47,891.64
  4. Step 4: Simplify right side
    88,177.20x = 5,827,684,635.07
  5. Step 5: Solve for x
    x = 5,827,684,635.07/88,177.20
  6. Step 6: Final answer
    x = 66,090.61

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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.