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Finding the Fourth Proportional to 43,998.72, 65,888.72 and 40,265.78

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Solution

The fourth proportional to 43,998.72, 65,888.72 and 40,265.78 is: 60,298.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,998.72 : 65,888.72 = 40,265.78 : x
  2. Step 2: Convert to fraction form
    43,998.72/65,888.72 = 40,265.78/x
  3. Step 3: Cross multiply
    43,998.72x = 65,888.72 × 40,265.78
  4. Step 4: Simplify right side
    43,998.72x = 2,653,060,722.31
  5. Step 5: Solve for x
    x = 2,653,060,722.31/43,998.72
  6. Step 6: Final answer
    x = 60,298.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.