Home / 55,959.06-77,221.17-30,806.94

Finding the Fourth Proportional to 55,959.06, 77,221.17 and 30,806.94

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Solution

The fourth proportional to 55,959.06, 77,221.17 and 30,806.94 is: 42,512.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,959.06 : 77,221.17 = 30,806.94 : x
  2. Step 2: Convert to fraction form
    55,959.06/77,221.17 = 30,806.94/x
  3. Step 3: Cross multiply
    55,959.06x = 77,221.17 × 30,806.94
  4. Step 4: Simplify right side
    55,959.06x = 2,378,947,950.92
  5. Step 5: Solve for x
    x = 2,378,947,950.92/55,959.06
  6. Step 6: Final answer
    x = 42,512.29

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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.