Home / 55,609.20-76,721.76-31,718.70

Finding the Fourth Proportional to 55,609.20, 76,721.76 and 31,718.70

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Solution

The fourth proportional to 55,609.20, 76,721.76 and 31,718.70 is: 43,761.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,609.20 : 76,721.76 = 31,718.70 : x
  2. Step 2: Convert to fraction form
    55,609.20/76,721.76 = 31,718.70/x
  3. Step 3: Cross multiply
    55,609.20x = 76,721.76 × 31,718.70
  4. Step 4: Simplify right side
    55,609.20x = 2,433,514,488.91
  5. Step 5: Solve for x
    x = 2,433,514,488.91/55,609.20
  6. Step 6: Final answer
    x = 43,761.01

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1.5x scale

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.