Home / 72,869.76-100,555.20-43,056

Finding the Fourth Proportional to 72,869.76, 100,555.20 and 43,056

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Solution

The fourth proportional to 72,869.76, 100,555.20 and 43,056 is: 59,414.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,869.76 : 100,555.20 = 43,056 : x
  2. Step 2: Convert to fraction form
    72,869.76/100,555.20 = 43,056/x
  3. Step 3: Cross multiply
    72,869.76x = 100,555.20 × 43,056
  4. Step 4: Simplify right side
    72,869.76x = 4,329,504,691.20
  5. Step 5: Solve for x
    x = 4,329,504,691.20/72,869.76
  6. Step 6: Final answer
    x = 59,414.29

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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.