Home / 99,782.28-149,543.82-40,549.01

Finding the Fourth Proportional to 99,782.28, 149,543.82 and 40,549.01

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Solution

The fourth proportional to 99,782.28, 149,543.82 and 40,549.01 is: 60,770.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,782.28 : 149,543.82 = 40,549.01 : x
  2. Step 2: Convert to fraction form
    99,782.28/149,543.82 = 40,549.01/x
  3. Step 3: Cross multiply
    99,782.28x = 149,543.82 × 40,549.01
  4. Step 4: Simplify right side
    99,782.28x = 6,063,853,104.90
  5. Step 5: Solve for x
    x = 6,063,853,104.90/99,782.28
  6. Step 6: Final answer
    x = 60,770.84

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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.