Home / 81,408.74-112,344.06-49,577.64

Finding the Fourth Proportional to 81,408.74, 112,344.06 and 49,577.64

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Solution

The fourth proportional to 81,408.74, 112,344.06 and 49,577.64 is: 68,417.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,408.74 : 112,344.06 = 49,577.64 : x
  2. Step 2: Convert to fraction form
    81,408.74/112,344.06 = 49,577.64/x
  3. Step 3: Cross multiply
    81,408.74x = 112,344.06 × 49,577.64
  4. Step 4: Simplify right side
    81,408.74x = 5,569,753,362.82
  5. Step 5: Solve for x
    x = 5,569,753,362.82/81,408.74
  6. Step 6: Final answer
    x = 68,417.14

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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.