Home / 89,334.78-123,282.20-49,051.12

Finding the Fourth Proportional to 89,334.78, 123,282.20 and 49,051.12

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Solution

The fourth proportional to 89,334.78, 123,282.20 and 49,051.12 is: 67,690.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,334.78 : 123,282.20 = 49,051.12 : x
  2. Step 2: Convert to fraction form
    89,334.78/123,282.20 = 49,051.12/x
  3. Step 3: Cross multiply
    89,334.78x = 123,282.20 × 49,051.12
  4. Step 4: Simplify right side
    89,334.78x = 6,047,129,986.06
  5. Step 5: Solve for x
    x = 6,047,129,986.06/89,334.78
  6. Step 6: Final answer
    x = 67,690.66

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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.