Home / 55,707.38-76,876.59-30,556.88

Finding the Fourth Proportional to 55,707.38, 76,876.59 and 30,556.88

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Solution

The fourth proportional to 55,707.38, 76,876.59 and 30,556.88 is: 42,168.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,707.38 : 76,876.59 = 30,556.88 : x
  2. Step 2: Convert to fraction form
    55,707.38/76,876.59 = 30,556.88/x
  3. Step 3: Cross multiply
    55,707.38x = 76,876.59 × 30,556.88
  4. Step 4: Simplify right side
    55,707.38x = 2,349,108,351.06
  5. Step 5: Solve for x
    x = 2,349,108,351.06/55,707.38
  6. Step 6: Final answer
    x = 42,168.71

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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.