Home / 81,603.18-122,404.33-44,399.74

Finding the Fourth Proportional to 81,603.18, 122,404.33 and 44,399.74

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Solution

The fourth proportional to 81,603.18, 122,404.33 and 44,399.74 is: 66,599.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,603.18 : 122,404.33 = 44,399.74 : x
  2. Step 2: Convert to fraction form
    81,603.18/122,404.33 = 44,399.74/x
  3. Step 3: Cross multiply
    81,603.18x = 122,404.33 × 44,399.74
  4. Step 4: Simplify right side
    81,603.18x = 5,434,720,426.87
  5. Step 5: Solve for x
    x = 5,434,720,426.87/81,603.18
  6. Step 6: Final answer
    x = 66,599.37

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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.