Home / 81,426.62-112,370.95-45,615.86

Finding the Fourth Proportional to 81,426.62, 112,370.95 and 45,615.86

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Solution

The fourth proportional to 81,426.62, 112,370.95 and 45,615.86 is: 62,951.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,426.62 : 112,370.95 = 45,615.86 : x
  2. Step 2: Convert to fraction form
    81,426.62/112,370.95 = 45,615.86/x
  3. Step 3: Cross multiply
    81,426.62x = 112,370.95 × 45,615.86
  4. Step 4: Simplify right side
    81,426.62x = 5,125,897,183.23
  5. Step 5: Solve for x
    x = 5,125,897,183.23/81,426.62
  6. Step 6: Final answer
    x = 62,951.13

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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.