Home / 48,699.12-67,213.02-28,278

Finding the Fourth Proportional to 48,699.12, 67,213.02 and 28,278

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Solution

The fourth proportional to 48,699.12, 67,213.02 and 28,278 is: 39,028.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,699.12 : 67,213.02 = 28,278 : x
  2. Step 2: Convert to fraction form
    48,699.12/67,213.02 = 28,278/x
  3. Step 3: Cross multiply
    48,699.12x = 67,213.02 × 28,278
  4. Step 4: Simplify right side
    48,699.12x = 1,900,649,779.56
  5. Step 5: Solve for x
    x = 1,900,649,779.56/48,699.12
  6. Step 6: Final answer
    x = 39,028.42

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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.