Home / 45,143.17-67,721.05-18,841.89

Finding the Fourth Proportional to 45,143.17, 67,721.05 and 18,841.89

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Solution

The fourth proportional to 45,143.17, 67,721.05 and 18,841.89 is: 28,265.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,143.17 : 67,721.05 = 18,841.89 : x
  2. Step 2: Convert to fraction form
    45,143.17/67,721.05 = 18,841.89/x
  3. Step 3: Cross multiply
    45,143.17x = 67,721.05 × 18,841.89
  4. Step 4: Simplify right side
    45,143.17x = 1,275,992,574.78
  5. Step 5: Solve for x
    x = 1,275,992,574.78/45,143.17
  6. Step 6: Final answer
    x = 28,265.46

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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.