Home / 214,959.45-322,438.78-57,187.90

Finding the Fourth Proportional to 214,959.45, 322,438.78 and 57,187.90

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Solution

The fourth proportional to 214,959.45, 322,438.78 and 57,187.90 is: 85,781.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,959.45 : 322,438.78 = 57,187.90 : x
  2. Step 2: Convert to fraction form
    214,959.45/322,438.78 = 57,187.90/x
  3. Step 3: Cross multiply
    214,959.45x = 322,438.78 × 57,187.90
  4. Step 4: Simplify right side
    214,959.45x = 18,439,596,706.76
  5. Step 5: Solve for x
    x = 18,439,596,706.76/214,959.45
  6. Step 6: Final answer
    x = 85,781.74

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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.