Home / 55,855.24-77,078.28-30,704.56

Finding the Fourth Proportional to 55,855.24, 77,078.28 and 30,704.56

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Solution

The fourth proportional to 55,855.24, 77,078.28 and 30,704.56 is: 42,371.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,855.24 : 77,078.28 = 30,704.56 : x
  2. Step 2: Convert to fraction form
    55,855.24/77,078.28 = 30,704.56/x
  3. Step 3: Cross multiply
    55,855.24x = 77,078.28 × 30,704.56
  4. Step 4: Simplify right side
    55,855.24x = 2,366,654,672.96
  5. Step 5: Solve for x
    x = 2,366,654,672.96/55,855.24
  6. Step 6: Final answer
    x = 42,371.22

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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.