Home / 90,487.10-124,871.10-50,199.86

Finding the Fourth Proportional to 90,487.10, 124,871.10 and 50,199.86

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Solution

The fourth proportional to 90,487.10, 124,871.10 and 50,199.86 is: 69,275.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,487.10 : 124,871.10 = 50,199.86 : x
  2. Step 2: Convert to fraction form
    90,487.10/124,871.10 = 50,199.86/x
  3. Step 3: Cross multiply
    90,487.10x = 124,871.10 × 50,199.86
  4. Step 4: Simplify right side
    90,487.10x = 6,268,511,738.05
  5. Step 5: Solve for x
    x = 6,268,511,738.05/90,487.10
  6. Step 6: Final answer
    x = 69,275.20

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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.