Home / 217,612.38-326,380.95-57,689.37

Finding the Fourth Proportional to 217,612.38, 326,380.95 and 57,689.37

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Solution

The fourth proportional to 217,612.38, 326,380.95 and 57,689.37 is: 86,524.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,612.38 : 326,380.95 = 57,689.37 : x
  2. Step 2: Convert to fraction form
    217,612.38/326,380.95 = 57,689.37/x
  3. Step 3: Cross multiply
    217,612.38x = 326,380.95 × 57,689.37
  4. Step 4: Simplify right side
    217,612.38x = 18,828,711,385.50
  5. Step 5: Solve for x
    x = 18,828,711,385.50/217,612.38
  6. Step 6: Final answer
    x = 86,524.08

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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.