Home / 55,901.80-77,121.68-31,697.65

Finding the Fourth Proportional to 55,901.80, 77,121.68 and 31,697.65

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Solution

The fourth proportional to 55,901.80, 77,121.68 and 31,697.65 is: 43,729.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,901.80 : 77,121.68 = 31,697.65 : x
  2. Step 2: Convert to fraction form
    55,901.80/77,121.68 = 31,697.65/x
  3. Step 3: Cross multiply
    55,901.80x = 77,121.68 × 31,697.65
  4. Step 4: Simplify right side
    55,901.80x = 2,444,576,020.05
  5. Step 5: Solve for x
    x = 2,444,576,020.05/55,901.80
  6. Step 6: Final answer
    x = 43,729.83

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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.