Home / 57,040.14-78,715.91-31,545.19

Finding the Fourth Proportional to 57,040.14, 78,715.91 and 31,545.19

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Solution

The fourth proportional to 57,040.14, 78,715.91 and 31,545.19 is: 43,532.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,040.14 : 78,715.91 = 31,545.19 : x
  2. Step 2: Convert to fraction form
    57,040.14/78,715.91 = 31,545.19/x
  3. Step 3: Cross multiply
    57,040.14x = 78,715.91 × 31,545.19
  4. Step 4: Simplify right side
    57,040.14x = 2,483,108,336.97
  5. Step 5: Solve for x
    x = 2,483,108,336.97/57,040.14
  6. Step 6: Final answer
    x = 43,532.65

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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.