Home / 92,671.48-138,957.25-49,999.78

Finding the Fourth Proportional to 92,671.48, 138,957.25 and 49,999.78

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Solution

The fourth proportional to 92,671.48, 138,957.25 and 49,999.78 is: 74,972.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,671.48 : 138,957.25 = 49,999.78 : x
  2. Step 2: Convert to fraction form
    92,671.48/138,957.25 = 49,999.78/x
  3. Step 3: Cross multiply
    92,671.48x = 138,957.25 × 49,999.78
  4. Step 4: Simplify right side
    92,671.48x = 6,947,831,929.41
  5. Step 5: Solve for x
    x = 6,947,831,929.41/92,671.48
  6. Step 6: Final answer
    x = 74,972.71

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1.5x scale

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.