Home / 80,136.34-120,242.31-35,759.14

Finding the Fourth Proportional to 80,136.34, 120,242.31 and 35,759.14

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Solution

The fourth proportional to 80,136.34, 120,242.31 and 35,759.14 is: 53,655.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,136.34 : 120,242.31 = 35,759.14 : x
  2. Step 2: Convert to fraction form
    80,136.34/120,242.31 = 35,759.14/x
  3. Step 3: Cross multiply
    80,136.34x = 120,242.31 × 35,759.14
  4. Step 4: Simplify right side
    80,136.34x = 4,299,761,597.21
  5. Step 5: Solve for x
    x = 4,299,761,597.21/80,136.34
  6. Step 6: Final answer
    x = 53,655.58

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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.