Home / 68,048.28-102,070.78-47,974.86

Finding the Fourth Proportional to 68,048.28, 102,070.78 and 47,974.86

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Solution

The fourth proportional to 68,048.28, 102,070.78 and 47,974.86 is: 71,961.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,048.28 : 102,070.78 = 47,974.86 : x
  2. Step 2: Convert to fraction form
    68,048.28/102,070.78 = 47,974.86/x
  3. Step 3: Cross multiply
    68,048.28x = 102,070.78 × 47,974.86
  4. Step 4: Simplify right side
    68,048.28x = 4,896,831,380.59
  5. Step 5: Solve for x
    x = 4,896,831,380.59/68,048.28
  6. Step 6: Final answer
    x = 71,961.13

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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.