Home / 71,229.51-106,841.30-18,637.83

Finding the Fourth Proportional to 71,229.51, 106,841.30 and 18,637.83

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Solution

The fourth proportional to 71,229.51, 106,841.30 and 18,637.83 is: 27,955.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,229.51 : 106,841.30 = 18,637.83 : x
  2. Step 2: Convert to fraction form
    71,229.51/106,841.30 = 18,637.83/x
  3. Step 3: Cross multiply
    71,229.51x = 106,841.30 × 18,637.83
  4. Step 4: Simplify right side
    71,229.51x = 1,991,290,398.68
  5. Step 5: Solve for x
    x = 1,991,290,398.68/71,229.51
  6. Step 6: Final answer
    x = 27,955.97

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1.5x scale

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.