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Finding the Fourth Proportional to 40,649.60, 60,974.40 and 34,234.40

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Solution

The fourth proportional to 40,649.60, 60,974.40 and 34,234.40 is: 51,351.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,649.60 : 60,974.40 = 34,234.40 : x
  2. Step 2: Convert to fraction form
    40,649.60/60,974.40 = 34,234.40/x
  3. Step 3: Cross multiply
    40,649.60x = 60,974.40 × 34,234.40
  4. Step 4: Simplify right side
    40,649.60x = 2,087,421,999.36
  5. Step 5: Solve for x
    x = 2,087,421,999.36/40,649.60
  6. Step 6: Final answer
    x = 51,351.60

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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.