Home / 74,491.20-111,639.60-34,505.55

Finding the Fourth Proportional to 74,491.20, 111,639.60 and 34,505.55

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Solution

The fourth proportional to 74,491.20, 111,639.60 and 34,505.55 is: 51,713.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,491.20 : 111,639.60 = 34,505.55 : x
  2. Step 2: Convert to fraction form
    74,491.20/111,639.60 = 34,505.55/x
  3. Step 3: Cross multiply
    74,491.20x = 111,639.60 × 34,505.55
  4. Step 4: Simplify right side
    74,491.20x = 3,852,185,799.78
  5. Step 5: Solve for x
    x = 3,852,185,799.78/74,491.20
  6. Step 6: Final answer
    x = 51,713.30

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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.