Home / 89,655.03-123,719.40-49,361.18

Finding the Fourth Proportional to 89,655.03, 123,719.40 and 49,361.18

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Solution

The fourth proportional to 89,655.03, 123,719.40 and 49,361.18 is: 68,115.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,655.03 : 123,719.40 = 49,361.18 : x
  2. Step 2: Convert to fraction form
    89,655.03/123,719.40 = 49,361.18/x
  3. Step 3: Cross multiply
    89,655.03x = 123,719.40 × 49,361.18
  4. Step 4: Simplify right side
    89,655.03x = 6,106,934,954.30
  5. Step 5: Solve for x
    x = 6,106,934,954.30/89,655.03
  6. Step 6: Final answer
    x = 68,115.92

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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.