Home / 89,648.19-123,712.84-49,361.07

Finding the Fourth Proportional to 89,648.19, 123,712.84 and 49,361.07

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Solution

The fourth proportional to 89,648.19, 123,712.84 and 49,361.07 is: 68,117.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,648.19 : 123,712.84 = 49,361.07 : x
  2. Step 2: Convert to fraction form
    89,648.19/123,712.84 = 49,361.07/x
  3. Step 3: Cross multiply
    89,648.19x = 123,712.84 × 49,361.07
  4. Step 4: Simplify right side
    89,648.19x = 6,106,598,155.14
  5. Step 5: Solve for x
    x = 6,106,598,155.14/89,648.19
  6. Step 6: Final answer
    x = 68,117.36

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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.