Home / 90,767.99-136,170.46-31,608.29

Finding the Fourth Proportional to 90,767.99, 136,170.46 and 31,608.29

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Solution

The fourth proportional to 90,767.99, 136,170.46 and 31,608.29 is: 47,418.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,767.99 : 136,170.46 = 31,608.29 : x
  2. Step 2: Convert to fraction form
    90,767.99/136,170.46 = 31,608.29/x
  3. Step 3: Cross multiply
    90,767.99x = 136,170.46 × 31,608.29
  4. Step 4: Simplify right side
    90,767.99x = 4,304,115,389.11
  5. Step 5: Solve for x
    x = 4,304,115,389.11/90,767.99
  6. Step 6: Final answer
    x = 47,418.87

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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.