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Finding the Fourth Proportional to 90,295.92, 124,608.72 and 50,008.80

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Solution

The fourth proportional to 90,295.92, 124,608.72 and 50,008.80 is: 69,012.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,295.92 : 124,608.72 = 50,008.80 : x
  2. Step 2: Convert to fraction form
    90,295.92/124,608.72 = 50,008.80/x
  3. Step 3: Cross multiply
    90,295.92x = 124,608.72 × 50,008.80
  4. Step 4: Simplify right side
    90,295.92x = 6,231,532,556.74
  5. Step 5: Solve for x
    x = 6,231,532,556.74/90,295.92
  6. Step 6: Final answer
    x = 69,012.34

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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.