Home / 55,872.89-77,103.47-30,379.76

Finding the Fourth Proportional to 55,872.89, 77,103.47 and 30,379.76

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Solution

The fourth proportional to 55,872.89, 77,103.47 and 30,379.76 is: 41,923.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,872.89 : 77,103.47 = 30,379.76 : x
  2. Step 2: Convert to fraction form
    55,872.89/77,103.47 = 30,379.76/x
  3. Step 3: Cross multiply
    55,872.89x = 77,103.47 × 30,379.76
  4. Step 4: Simplify right side
    55,872.89x = 2,342,384,913.77
  5. Step 5: Solve for x
    x = 2,342,384,913.77/55,872.89
  6. Step 6: Final answer
    x = 41,923.46

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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.