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Finding the Fourth Proportional to 72,494.96, 100,029.16 and 43,808.80

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Solution

The fourth proportional to 72,494.96, 100,029.16 and 43,808.80 is: 60,447.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,494.96 : 100,029.16 = 43,808.80 : x
  2. Step 2: Convert to fraction form
    72,494.96/100,029.16 = 43,808.80/x
  3. Step 3: Cross multiply
    72,494.96x = 100,029.16 × 43,808.80
  4. Step 4: Simplify right side
    72,494.96x = 4,382,157,464.61
  5. Step 5: Solve for x
    x = 4,382,157,464.61/72,494.96
  6. Step 6: Final answer
    x = 60,447.75

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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.