Home / 89,643.90-123,707.58-49,356.84

Finding the Fourth Proportional to 89,643.90, 123,707.58 and 49,356.84

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Solution

The fourth proportional to 89,643.90, 123,707.58 and 49,356.84 is: 68,111.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,643.90 : 123,707.58 = 49,356.84 : x
  2. Step 2: Convert to fraction form
    89,643.90/123,707.58 = 49,356.84/x
  3. Step 3: Cross multiply
    89,643.90x = 123,707.58 × 49,356.84
  4. Step 4: Simplify right side
    89,643.90x = 6,105,815,232.85
  5. Step 5: Solve for x
    x = 6,105,815,232.85/89,643.90
  6. Step 6: Final answer
    x = 68,111.89

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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.