Home / 81,222.51-121,819.77-22,062.93

Finding the Fourth Proportional to 81,222.51, 121,819.77 and 22,062.93

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Solution

The fourth proportional to 81,222.51, 121,819.77 and 22,062.93 is: 33,090.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,222.51 : 121,819.77 = 22,062.93 : x
  2. Step 2: Convert to fraction form
    81,222.51/121,819.77 = 22,062.93/x
  3. Step 3: Cross multiply
    81,222.51x = 121,819.77 × 22,062.93
  4. Step 4: Simplify right side
    81,222.51x = 2,687,701,058.13
  5. Step 5: Solve for x
    x = 2,687,701,058.13/81,222.51
  6. Step 6: Final answer
    x = 33,090.59

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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.