Home / 55,929.47-77,182.82-30,778.97

Finding the Fourth Proportional to 55,929.47, 77,182.82 and 30,778.97

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Solution

The fourth proportional to 55,929.47, 77,182.82 and 30,778.97 is: 42,475.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,929.47 : 77,182.82 = 30,778.97 : x
  2. Step 2: Convert to fraction form
    55,929.47/77,182.82 = 30,778.97/x
  3. Step 3: Cross multiply
    55,929.47x = 77,182.82 × 30,778.97
  4. Step 4: Simplify right side
    55,929.47x = 2,375,607,161.49
  5. Step 5: Solve for x
    x = 2,375,607,161.49/55,929.47
  6. Step 6: Final answer
    x = 42,475.06

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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.