Home / 83,358.12-115,034.40-45,634.80

Finding the Fourth Proportional to 83,358.12, 115,034.40 and 45,634.80

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Solution

The fourth proportional to 83,358.12, 115,034.40 and 45,634.80 is: 62,976.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,358.12 : 115,034.40 = 45,634.80 : x
  2. Step 2: Convert to fraction form
    83,358.12/115,034.40 = 45,634.80/x
  3. Step 3: Cross multiply
    83,358.12x = 115,034.40 × 45,634.80
  4. Step 4: Simplify right side
    83,358.12x = 5,249,571,837.12
  5. Step 5: Solve for x
    x = 5,249,571,837.12/83,358.12
  6. Step 6: Final answer
    x = 62,976.13

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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.