Home / 88,249.34-121,784.89-47,963.20

Finding the Fourth Proportional to 88,249.34, 121,784.89 and 47,963.20

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Solution

The fourth proportional to 88,249.34, 121,784.89 and 47,963.20 is: 66,189.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,249.34 : 121,784.89 = 47,963.20 : x
  2. Step 2: Convert to fraction form
    88,249.34/121,784.89 = 47,963.20/x
  3. Step 3: Cross multiply
    88,249.34x = 121,784.89 × 47,963.20
  4. Step 4: Simplify right side
    88,249.34x = 5,841,193,155.96
  5. Step 5: Solve for x
    x = 5,841,193,155.96/88,249.34
  6. Step 6: Final answer
    x = 66,189.65

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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.