Home / 87,837.39-121,214.75-47,550.11

Finding the Fourth Proportional to 87,837.39, 121,214.75 and 47,550.11

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Solution

The fourth proportional to 87,837.39, 121,214.75 and 47,550.11 is: 65,618.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,837.39 : 121,214.75 = 47,550.11 : x
  2. Step 2: Convert to fraction form
    87,837.39/121,214.75 = 47,550.11/x
  3. Step 3: Cross multiply
    87,837.39x = 121,214.75 × 47,550.11
  4. Step 4: Simplify right side
    87,837.39x = 5,763,773,852.30
  5. Step 5: Solve for x
    x = 5,763,773,852.30/87,837.39
  6. Step 6: Final answer
    x = 65,618.68

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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.