Home / 88,286.36-121,854.18-54,323.72

Finding the Fourth Proportional to 88,286.36, 121,854.18 and 54,323.72

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Solution

The fourth proportional to 88,286.36, 121,854.18 and 54,323.72 is: 74,978.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,286.36 : 121,854.18 = 54,323.72 : x
  2. Step 2: Convert to fraction form
    88,286.36/121,854.18 = 54,323.72/x
  3. Step 3: Cross multiply
    88,286.36x = 121,854.18 × 54,323.72
  4. Step 4: Simplify right side
    88,286.36x = 6,619,572,355.15
  5. Step 5: Solve for x
    x = 6,619,572,355.15/88,286.36
  6. Step 6: Final answer
    x = 74,978.43

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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.