Home / 83,646.28-115,432.26-45,920.50

Finding the Fourth Proportional to 83,646.28, 115,432.26 and 45,920.50

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Solution

The fourth proportional to 83,646.28, 115,432.26 and 45,920.50 is: 63,370.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,646.28 : 115,432.26 = 45,920.50 : x
  2. Step 2: Convert to fraction form
    83,646.28/115,432.26 = 45,920.50/x
  3. Step 3: Cross multiply
    83,646.28x = 115,432.26 × 45,920.50
  4. Step 4: Simplify right side
    83,646.28x = 5,300,707,095.33
  5. Step 5: Solve for x
    x = 5,300,707,095.33/83,646.28
  6. Step 6: Final answer
    x = 63,370.51

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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.