Home / 70,040.20-96,651.72-39,821.38

Finding the Fourth Proportional to 70,040.20, 96,651.72 and 39,821.38

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Solution

The fourth proportional to 70,040.20, 96,651.72 and 39,821.38 is: 54,951.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,040.20 : 96,651.72 = 39,821.38 : x
  2. Step 2: Convert to fraction form
    70,040.20/96,651.72 = 39,821.38/x
  3. Step 3: Cross multiply
    70,040.20x = 96,651.72 × 39,821.38
  4. Step 4: Simplify right side
    70,040.20x = 3,848,804,869.77
  5. Step 5: Solve for x
    x = 3,848,804,869.77/70,040.20
  6. Step 6: Final answer
    x = 54,951.37

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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.