Home / 90,687.49-125,224.27-75,658.94

Finding the Fourth Proportional to 90,687.49, 125,224.27 and 75,658.94

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Solution

The fourth proportional to 90,687.49, 125,224.27 and 75,658.94 is: 104,472.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,687.49 : 125,224.27 = 75,658.94 : x
  2. Step 2: Convert to fraction form
    90,687.49/125,224.27 = 75,658.94/x
  3. Step 3: Cross multiply
    90,687.49x = 125,224.27 × 75,658.94
  4. Step 4: Simplify right side
    90,687.49x = 9,474,335,530.47
  5. Step 5: Solve for x
    x = 9,474,335,530.47/90,687.49
  6. Step 6: Final answer
    x = 104,472.35

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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.