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Finding the Fourth Proportional to 40,889.80, 61,334.70 and 34,328.80

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Solution

The fourth proportional to 40,889.80, 61,334.70 and 34,328.80 is: 51,493.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,889.80 : 61,334.70 = 34,328.80 : x
  2. Step 2: Convert to fraction form
    40,889.80/61,334.70 = 34,328.80/x
  3. Step 3: Cross multiply
    40,889.80x = 61,334.70 × 34,328.80
  4. Step 4: Simplify right side
    40,889.80x = 2,105,546,649.36
  5. Step 5: Solve for x
    x = 2,105,546,649.36/40,889.80
  6. Step 6: Final answer
    x = 51,493.20

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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.