Home / 76,812.04-115,217.52-21,408.04

Finding the Fourth Proportional to 76,812.04, 115,217.52 and 21,408.04

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Solution

The fourth proportional to 76,812.04, 115,217.52 and 21,408.04 is: 32,111.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,812.04 : 115,217.52 = 21,408.04 : x
  2. Step 2: Convert to fraction form
    76,812.04/115,217.52 = 21,408.04/x
  3. Step 3: Cross multiply
    76,812.04x = 115,217.52 × 21,408.04
  4. Step 4: Simplify right side
    76,812.04x = 2,466,581,276.86
  5. Step 5: Solve for x
    x = 2,466,581,276.86/76,812.04
  6. Step 6: Final answer
    x = 32,111.91

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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.