Home / 51,426.77-70,976.49-31,279.74

Finding the Fourth Proportional to 51,426.77, 70,976.49 and 31,279.74

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Solution

The fourth proportional to 51,426.77, 70,976.49 and 31,279.74 is: 43,170.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,426.77 : 70,976.49 = 31,279.74 : x
  2. Step 2: Convert to fraction form
    51,426.77/70,976.49 = 31,279.74/x
  3. Step 3: Cross multiply
    51,426.77x = 70,976.49 × 31,279.74
  4. Step 4: Simplify right side
    51,426.77x = 2,220,125,769.85
  5. Step 5: Solve for x
    x = 2,220,125,769.85/51,426.77
  6. Step 6: Final answer
    x = 43,170.63

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.