Home / 64,729.83-89,371.08-40,540.53

Finding the Fourth Proportional to 64,729.83, 89,371.08 and 40,540.53

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Solution

The fourth proportional to 64,729.83, 89,371.08 and 40,540.53 is: 55,973.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,729.83 : 89,371.08 = 40,540.53 : x
  2. Step 2: Convert to fraction form
    64,729.83/89,371.08 = 40,540.53/x
  3. Step 3: Cross multiply
    64,729.83x = 89,371.08 × 40,540.53
  4. Step 4: Simplify right side
    64,729.83x = 3,623,150,949.87
  5. Step 5: Solve for x
    x = 3,623,150,949.87/64,729.83
  6. Step 6: Final answer
    x = 55,973.44

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.