Home / 83,456.10-115,168.62-45,214.80

Finding the Fourth Proportional to 83,456.10, 115,168.62 and 45,214.80

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Solution

The fourth proportional to 83,456.10, 115,168.62 and 45,214.80 is: 62,395.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,456.10 : 115,168.62 = 45,214.80 : x
  2. Step 2: Convert to fraction form
    83,456.10/115,168.62 = 45,214.80/x
  3. Step 3: Cross multiply
    83,456.10x = 115,168.62 × 45,214.80
  4. Step 4: Simplify right side
    83,456.10x = 5,207,326,119.58
  5. Step 5: Solve for x
    x = 5,207,326,119.58/83,456.10
  6. Step 6: Final answer
    x = 62,395.99

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1.5x scale

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.