Home / 90,934.56-125,496-55,126.08

Finding the Fourth Proportional to 90,934.56, 125,496 and 55,126.08

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Solution

The fourth proportional to 90,934.56, 125,496 and 55,126.08 is: 76,077.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,934.56 : 125,496 = 55,126.08 : x
  2. Step 2: Convert to fraction form
    90,934.56/125,496 = 55,126.08/x
  3. Step 3: Cross multiply
    90,934.56x = 125,496 × 55,126.08
  4. Step 4: Simplify right side
    90,934.56x = 6,918,102,535.68
  5. Step 5: Solve for x
    x = 6,918,102,535.68/90,934.56
  6. Step 6: Final answer
    x = 76,077.81

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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.