Home / 48,699.62-67,213.72-28,278.50

Finding the Fourth Proportional to 48,699.62, 67,213.72 and 28,278.50

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Solution

The fourth proportional to 48,699.62, 67,213.72 and 28,278.50 is: 39,029.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,699.62 : 67,213.72 = 28,278.50 : x
  2. Step 2: Convert to fraction form
    48,699.62/67,213.72 = 28,278.50/x
  3. Step 3: Cross multiply
    48,699.62x = 67,213.72 × 28,278.50
  4. Step 4: Simplify right side
    48,699.62x = 1,900,703,181.02
  5. Step 5: Solve for x
    x = 1,900,703,181.02/48,699.62
  6. Step 6: Final answer
    x = 39,029.12

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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.