Home / 71,153.07-106,722.45-18,562.65

Finding the Fourth Proportional to 71,153.07, 106,722.45 and 18,562.65

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Solution

The fourth proportional to 71,153.07, 106,722.45 and 18,562.65 is: 27,842.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,153.07 : 106,722.45 = 18,562.65 : x
  2. Step 2: Convert to fraction form
    71,153.07/106,722.45 = 18,562.65/x
  3. Step 3: Cross multiply
    71,153.07x = 106,722.45 × 18,562.65
  4. Step 4: Simplify right side
    71,153.07x = 1,981,051,486.49
  5. Step 5: Solve for x
    x = 1,981,051,486.49/71,153.07
  6. Step 6: Final answer
    x = 27,842.11

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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.