Home / 78,847.30-118,076.55-52,408.90

Finding the Fourth Proportional to 78,847.30, 118,076.55 and 52,408.90

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Solution

The fourth proportional to 78,847.30, 118,076.55 and 52,408.90 is: 78,484.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,847.30 : 118,076.55 = 52,408.90 : x
  2. Step 2: Convert to fraction form
    78,847.30/118,076.55 = 52,408.90/x
  3. Step 3: Cross multiply
    78,847.30x = 118,076.55 × 52,408.90
  4. Step 4: Simplify right side
    78,847.30x = 6,188,262,101.30
  5. Step 5: Solve for x
    x = 6,188,262,101.30/78,847.30
  6. Step 6: Final answer
    x = 78,484.13

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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.