Home / 74,109.91-102,279.72-48,636.82

Finding the Fourth Proportional to 74,109.91, 102,279.72 and 48,636.82

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Solution

The fourth proportional to 74,109.91, 102,279.72 and 48,636.82 is: 67,124.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,109.91 : 102,279.72 = 48,636.82 : x
  2. Step 2: Convert to fraction form
    74,109.91/102,279.72 = 48,636.82/x
  3. Step 3: Cross multiply
    74,109.91x = 102,279.72 × 48,636.82
  4. Step 4: Simplify right side
    74,109.91x = 4,974,560,331.29
  5. Step 5: Solve for x
    x = 4,974,560,331.29/74,109.91
  6. Step 6: Final answer
    x = 67,124.09

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.