Home / 81,769.32-122,671.26-26,361

Finding the Fourth Proportional to 81,769.32, 122,671.26 and 26,361

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Solution

The fourth proportional to 81,769.32, 122,671.26 and 26,361 is: 39,547.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,769.32 : 122,671.26 = 26,361 : x
  2. Step 2: Convert to fraction form
    81,769.32/122,671.26 = 26,361/x
  3. Step 3: Cross multiply
    81,769.32x = 122,671.26 × 26,361
  4. Step 4: Simplify right side
    81,769.32x = 3,233,737,084.86
  5. Step 5: Solve for x
    x = 3,233,737,084.86/81,769.32
  6. Step 6: Final answer
    x = 39,547.07

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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.