Home / 78,452.24-117,612.21-34,045.53

Finding the Fourth Proportional to 78,452.24, 117,612.21 and 34,045.53

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Solution

The fourth proportional to 78,452.24, 117,612.21 and 34,045.53 is: 51,039.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,452.24 : 117,612.21 = 34,045.53 : x
  2. Step 2: Convert to fraction form
    78,452.24/117,612.21 = 34,045.53/x
  3. Step 3: Cross multiply
    78,452.24x = 117,612.21 × 34,045.53
  4. Step 4: Simplify right side
    78,452.24x = 4,004,170,023.92
  5. Step 5: Solve for x
    x = 4,004,170,023.92/78,452.24
  6. Step 6: Final answer
    x = 51,039.59

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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.