Home / 83,356.43-115,031.09-45,115.20

Finding the Fourth Proportional to 83,356.43, 115,031.09 and 45,115.20

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Solution

The fourth proportional to 83,356.43, 115,031.09 and 45,115.20 is: 62,258.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,356.43 : 115,031.09 = 45,115.20 : x
  2. Step 2: Convert to fraction form
    83,356.43/115,031.09 = 45,115.20/x
  3. Step 3: Cross multiply
    83,356.43x = 115,031.09 × 45,115.20
  4. Step 4: Simplify right side
    83,356.43x = 5,189,650,744.36
  5. Step 5: Solve for x
    x = 5,189,650,744.36/83,356.43
  6. Step 6: Final answer
    x = 62,258.56

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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.