Home / 45,240.78-62,391.39-28,246.56

Finding the Fourth Proportional to 45,240.78, 62,391.39 and 28,246.56

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Solution

The fourth proportional to 45,240.78, 62,391.39 and 28,246.56 is: 38,954.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,240.78 : 62,391.39 = 28,246.56 : x
  2. Step 2: Convert to fraction form
    45,240.78/62,391.39 = 28,246.56/x
  3. Step 3: Cross multiply
    45,240.78x = 62,391.39 × 28,246.56
  4. Step 4: Simplify right side
    45,240.78x = 1,762,342,141.12
  5. Step 5: Solve for x
    x = 1,762,342,141.12/45,240.78
  6. Step 6: Final answer
    x = 38,954.72

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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.