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Finding the Fourth Proportional to 90,675.92, 125,133.46 and 50,393.46

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Solution

The fourth proportional to 90,675.92, 125,133.46 and 50,393.46 is: 69,543.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,675.92 : 125,133.46 = 50,393.46 : x
  2. Step 2: Convert to fraction form
    90,675.92/125,133.46 = 50,393.46/x
  3. Step 3: Cross multiply
    90,675.92x = 125,133.46 × 50,393.46
  4. Step 4: Simplify right side
    90,675.92x = 6,305,908,011.17
  5. Step 5: Solve for x
    x = 6,305,908,011.17/90,675.92
  6. Step 6: Final answer
    x = 69,543.36

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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.