Home / 76,671.18-114,887.19-48,531.78

Finding the Fourth Proportional to 76,671.18, 114,887.19 and 48,531.78

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Solution

The fourth proportional to 76,671.18, 114,887.19 and 48,531.78 is: 72,721.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,671.18 : 114,887.19 = 48,531.78 : x
  2. Step 2: Convert to fraction form
    76,671.18/114,887.19 = 48,531.78/x
  3. Step 3: Cross multiply
    76,671.18x = 114,887.19 × 48,531.78
  4. Step 4: Simplify right side
    76,671.18x = 5,575,679,829.90
  5. Step 5: Solve for x
    x = 5,575,679,829.90/76,671.18
  6. Step 6: Final answer
    x = 72,721.98

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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.