Home / 72,787.14-109,180.71-20,196.64

Finding the Fourth Proportional to 72,787.14, 109,180.71 and 20,196.64

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Solution

The fourth proportional to 72,787.14, 109,180.71 and 20,196.64 is: 30,294.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,787.14 : 109,180.71 = 20,196.64 : x
  2. Step 2: Convert to fraction form
    72,787.14/109,180.71 = 20,196.64/x
  3. Step 3: Cross multiply
    72,787.14x = 109,180.71 × 20,196.64
  4. Step 4: Simplify right side
    72,787.14x = 2,205,083,631.29
  5. Step 5: Solve for x
    x = 2,205,083,631.29/72,787.14
  6. Step 6: Final answer
    x = 30,294.96

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1.5x scale

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.