Home / 45,721.03-68,574.62-12,443.69

Finding the Fourth Proportional to 45,721.03, 68,574.62 and 12,443.69

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Solution

The fourth proportional to 45,721.03, 68,574.62 and 12,443.69 is: 18,663.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,721.03 : 68,574.62 = 12,443.69 : x
  2. Step 2: Convert to fraction form
    45,721.03/68,574.62 = 12,443.69/x
  3. Step 3: Cross multiply
    45,721.03x = 68,574.62 × 12,443.69
  4. Step 4: Simplify right side
    45,721.03x = 853,321,036.63
  5. Step 5: Solve for x
    x = 853,321,036.63/45,721.03
  6. Step 6: Final answer
    x = 18,663.64

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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.