Home / 215,045.76-322,568.28-57,274.68

Finding the Fourth Proportional to 215,045.76, 322,568.28 and 57,274.68

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Solution

The fourth proportional to 215,045.76, 322,568.28 and 57,274.68 is: 85,911.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,045.76 : 322,568.28 = 57,274.68 : x
  2. Step 2: Convert to fraction form
    215,045.76/322,568.28 = 57,274.68/x
  3. Step 3: Cross multiply
    215,045.76x = 322,568.28 × 57,274.68
  4. Step 4: Simplify right side
    215,045.76x = 18,474,995,015.15
  5. Step 5: Solve for x
    x = 18,474,995,015.15/215,045.76
  6. Step 6: Final answer
    x = 85,911.92

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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.