Home / 71,145.42-98,181.36-39,314.85

Finding the Fourth Proportional to 71,145.42, 98,181.36 and 39,314.85

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Solution

The fourth proportional to 71,145.42, 98,181.36 and 39,314.85 is: 54,254.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,145.42 : 98,181.36 = 39,314.85 : x
  2. Step 2: Convert to fraction form
    71,145.42/98,181.36 = 39,314.85/x
  3. Step 3: Cross multiply
    71,145.42x = 98,181.36 × 39,314.85
  4. Step 4: Simplify right side
    71,145.42x = 3,859,985,441.20
  5. Step 5: Solve for x
    x = 3,859,985,441.20/71,145.42
  6. Step 6: Final answer
    x = 54,254.87

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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.