Home / 90,449.50-124,820.34-50,169.46

Finding the Fourth Proportional to 90,449.50, 124,820.34 and 50,169.46

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Solution

The fourth proportional to 90,449.50, 124,820.34 and 50,169.46 is: 69,233.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,449.50 : 124,820.34 = 50,169.46 : x
  2. Step 2: Convert to fraction form
    90,449.50/124,820.34 = 50,169.46/x
  3. Step 3: Cross multiply
    90,449.50x = 124,820.34 × 50,169.46
  4. Step 4: Simplify right side
    90,449.50x = 6,262,169,054.82
  5. Step 5: Solve for x
    x = 6,262,169,054.82/90,449.50
  6. Step 6: Final answer
    x = 69,233.87

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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.