Home / 88,318.08-121,849.92-54,777.60

Finding the Fourth Proportional to 88,318.08, 121,849.92 and 54,777.60

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Solution

The fourth proportional to 88,318.08, 121,849.92 and 54,777.60 is: 75,575.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,318.08 : 121,849.92 = 54,777.60 : x
  2. Step 2: Convert to fraction form
    88,318.08/121,849.92 = 54,777.60/x
  3. Step 3: Cross multiply
    88,318.08x = 121,849.92 × 54,777.60
  4. Step 4: Simplify right side
    88,318.08x = 6,674,646,177.79
  5. Step 5: Solve for x
    x = 6,674,646,177.79/88,318.08
  6. Step 6: Final answer
    x = 75,575.08

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1.5x scale

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.