Home / 55,641.22-76,743-38,645.49

Finding the Fourth Proportional to 55,641.22, 76,743 and 38,645.49

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Solution

The fourth proportional to 55,641.22, 76,743 and 38,645.49 is: 53,301.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,641.22 : 76,743 = 38,645.49 : x
  2. Step 2: Convert to fraction form
    55,641.22/76,743 = 38,645.49/x
  3. Step 3: Cross multiply
    55,641.22x = 76,743 × 38,645.49
  4. Step 4: Simplify right side
    55,641.22x = 2,965,770,839.07
  5. Step 5: Solve for x
    x = 2,965,770,839.07/55,641.22
  6. Step 6: Final answer
    x = 53,301.69

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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.