Home / 83,673.07-115,470.21-45,432.61

Finding the Fourth Proportional to 83,673.07, 115,470.21 and 45,432.61

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Solution

The fourth proportional to 83,673.07, 115,470.21 and 45,432.61 is: 62,697.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,673.07 : 115,470.21 = 45,432.61 : x
  2. Step 2: Convert to fraction form
    83,673.07/115,470.21 = 45,432.61/x
  3. Step 3: Cross multiply
    83,673.07x = 115,470.21 × 45,432.61
  4. Step 4: Simplify right side
    83,673.07x = 5,246,113,017.55
  5. Step 5: Solve for x
    x = 5,246,113,017.55/83,673.07
  6. Step 6: Final answer
    x = 62,697.75

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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.