Home / 81,633.03-122,344.32-39,503.22

Finding the Fourth Proportional to 81,633.03, 122,344.32 and 39,503.22

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Solution

The fourth proportional to 81,633.03, 122,344.32 and 39,503.22 is: 59,203.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,633.03 : 122,344.32 = 39,503.22 : x
  2. Step 2: Convert to fraction form
    81,633.03/122,344.32 = 39,503.22/x
  3. Step 3: Cross multiply
    81,633.03x = 122,344.32 × 39,503.22
  4. Step 4: Simplify right side
    81,633.03x = 4,832,994,588.71
  5. Step 5: Solve for x
    x = 4,832,994,588.71/81,633.03
  6. Step 6: Final answer
    x = 59,203.91

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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.