Home / 45,721.22-68,574.90-12,443.88

Finding the Fourth Proportional to 45,721.22, 68,574.90 and 12,443.88

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Solution

The fourth proportional to 45,721.22, 68,574.90 and 12,443.88 is: 18,663.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,721.22 : 68,574.90 = 12,443.88 : x
  2. Step 2: Convert to fraction form
    45,721.22/68,574.90 = 12,443.88/x
  3. Step 3: Cross multiply
    45,721.22x = 68,574.90 × 12,443.88
  4. Step 4: Simplify right side
    45,721.22x = 853,337,421.52
  5. Step 5: Solve for x
    x = 853,337,421.52/45,721.22
  6. Step 6: Final answer
    x = 18,663.93

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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.