Home / 45,108.12-67,666.17-11,828.07

Finding the Fourth Proportional to 45,108.12, 67,666.17 and 11,828.07

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Solution

The fourth proportional to 45,108.12, 67,666.17 and 11,828.07 is: 17,743.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,108.12 : 67,666.17 = 11,828.07 : x
  2. Step 2: Convert to fraction form
    45,108.12/67,666.17 = 11,828.07/x
  3. Step 3: Cross multiply
    45,108.12x = 67,666.17 × 11,828.07
  4. Step 4: Simplify right side
    45,108.12x = 800,360,195.39
  5. Step 5: Solve for x
    x = 800,360,195.39/45,108.12
  6. Step 6: Final answer
    x = 17,743.15

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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.