Home / 90,728.28-125,195.52-50,435.55

Finding the Fourth Proportional to 90,728.28, 125,195.52 and 50,435.55

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Solution

The fourth proportional to 90,728.28, 125,195.52 and 50,435.55 is: 69,595.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,728.28 : 125,195.52 = 50,435.55 : x
  2. Step 2: Convert to fraction form
    90,728.28/125,195.52 = 50,435.55/x
  3. Step 3: Cross multiply
    90,728.28x = 125,195.52 × 50,435.55
  4. Step 4: Simplify right side
    90,728.28x = 6,314,304,908.74
  5. Step 5: Solve for x
    x = 6,314,304,908.74/90,728.28
  6. Step 6: Final answer
    x = 69,595.77

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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.