Home / 45,120.66-67,358.06-39,217.38

Finding the Fourth Proportional to 45,120.66, 67,358.06 and 39,217.38

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Solution

The fourth proportional to 45,120.66, 67,358.06 and 39,217.38 is: 58,545.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,120.66 : 67,358.06 = 39,217.38 : x
  2. Step 2: Convert to fraction form
    45,120.66/67,358.06 = 39,217.38/x
  3. Step 3: Cross multiply
    45,120.66x = 67,358.06 × 39,217.38
  4. Step 4: Simplify right side
    45,120.66x = 2,641,606,439.00
  5. Step 5: Solve for x
    x = 2,641,606,439.00/45,120.66
  6. Step 6: Final answer
    x = 58,545.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.