Home / 88,178.54-121,685.94-47,891.97

Finding the Fourth Proportional to 88,178.54, 121,685.94 and 47,891.97

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Solution

The fourth proportional to 88,178.54, 121,685.94 and 47,891.97 is: 66,090.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,178.54 : 121,685.94 = 47,891.97 : x
  2. Step 2: Convert to fraction form
    88,178.54/121,685.94 = 47,891.97/x
  3. Step 3: Cross multiply
    88,178.54x = 121,685.94 × 47,891.97
  4. Step 4: Simplify right side
    88,178.54x = 5,827,779,387.90
  5. Step 5: Solve for x
    x = 5,827,779,387.90/88,178.54
  6. Step 6: Final answer
    x = 66,090.68

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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.