Home / 91,138.15-125,793.73-54,383.93

Finding the Fourth Proportional to 91,138.15, 125,793.73 and 54,383.93

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Solution

The fourth proportional to 91,138.15, 125,793.73 and 54,383.93 is: 75,063.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,138.15 : 125,793.73 = 54,383.93 : x
  2. Step 2: Convert to fraction form
    91,138.15/125,793.73 = 54,383.93/x
  3. Step 3: Cross multiply
    91,138.15x = 125,793.73 × 54,383.93
  4. Step 4: Simplify right side
    91,138.15x = 6,841,156,845.77
  5. Step 5: Solve for x
    x = 6,841,156,845.77/91,138.15
  6. Step 6: Final answer
    x = 75,063.59

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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.