Home / 83,399.07-115,086.14-48,939.18

Finding the Fourth Proportional to 83,399.07, 115,086.14 and 48,939.18

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Solution

The fourth proportional to 83,399.07, 115,086.14 and 48,939.18 is: 67,533.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,399.07 : 115,086.14 = 48,939.18 : x
  2. Step 2: Convert to fraction form
    83,399.07/115,086.14 = 48,939.18/x
  3. Step 3: Cross multiply
    83,399.07x = 115,086.14 × 48,939.18
  4. Step 4: Simplify right side
    83,399.07x = 5,632,221,320.97
  5. Step 5: Solve for x
    x = 5,632,221,320.97/83,399.07
  6. Step 6: Final answer
    x = 67,533.38

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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.