Home / 72,343.41-108,380.25-42,673.11

Finding the Fourth Proportional to 72,343.41, 108,380.25 and 42,673.11

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Solution

The fourth proportional to 72,343.41, 108,380.25 and 42,673.11 is: 63,930.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,343.41 : 108,380.25 = 42,673.11 : x
  2. Step 2: Convert to fraction form
    72,343.41/108,380.25 = 42,673.11/x
  3. Step 3: Cross multiply
    72,343.41x = 108,380.25 × 42,673.11
  4. Step 4: Simplify right side
    72,343.41x = 4,624,922,330.08
  5. Step 5: Solve for x
    x = 4,624,922,330.08/72,343.41
  6. Step 6: Final answer
    x = 63,930.11

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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.