Home / 51,512.49-77,279.67-17,781.66

Finding the Fourth Proportional to 51,512.49, 77,279.67 and 17,781.66

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Solution

The fourth proportional to 51,512.49, 77,279.67 and 17,781.66 is: 26,676.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,512.49 : 77,279.67 = 17,781.66 : x
  2. Step 2: Convert to fraction form
    51,512.49/77,279.67 = 17,781.66/x
  3. Step 3: Cross multiply
    51,512.49x = 77,279.67 × 17,781.66
  4. Step 4: Simplify right side
    51,512.49x = 1,374,160,816.85
  5. Step 5: Solve for x
    x = 1,374,160,816.85/51,512.49
  6. Step 6: Final answer
    x = 26,676.26

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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.