Home / 55,391.42-76,439.76-30,240.92

Finding the Fourth Proportional to 55,391.42, 76,439.76 and 30,240.92

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Solution

The fourth proportional to 55,391.42, 76,439.76 and 30,240.92 is: 41,732.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,391.42 : 76,439.76 = 30,240.92 : x
  2. Step 2: Convert to fraction form
    55,391.42/76,439.76 = 30,240.92/x
  3. Step 3: Cross multiply
    55,391.42x = 76,439.76 × 30,240.92
  4. Step 4: Simplify right side
    55,391.42x = 2,311,608,666.98
  5. Step 5: Solve for x
    x = 2,311,608,666.98/55,391.42
  6. Step 6: Final answer
    x = 41,732.25

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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.