Home / 74,019.41-111,040.76-31,911.45

Finding the Fourth Proportional to 74,019.41, 111,040.76 and 31,911.45

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Solution

The fourth proportional to 74,019.41, 111,040.76 and 31,911.45 is: 47,872.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,019.41 : 111,040.76 = 31,911.45 : x
  2. Step 2: Convert to fraction form
    74,019.41/111,040.76 = 31,911.45/x
  3. Step 3: Cross multiply
    74,019.41x = 111,040.76 × 31,911.45
  4. Step 4: Simplify right side
    74,019.41x = 3,543,471,501.14
  5. Step 5: Solve for x
    x = 3,543,471,501.14/74,019.41
  6. Step 6: Final answer
    x = 47,872.20

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.