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Finding the Fourth Proportional to 91,286.80, 125,963.32 and 50,995.58

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Solution

The fourth proportional to 91,286.80, 125,963.32 and 50,995.58 is: 70,366.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,286.80 : 125,963.32 = 50,995.58 : x
  2. Step 2: Convert to fraction form
    91,286.80/125,963.32 = 50,995.58/x
  3. Step 3: Cross multiply
    91,286.80x = 125,963.32 × 50,995.58
  4. Step 4: Simplify right side
    91,286.80x = 6,423,572,562.13
  5. Step 5: Solve for x
    x = 6,423,572,562.13/91,286.80
  6. Step 6: Final answer
    x = 70,366.94

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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.