Home / 89,214.75-123,116.36-49,470.75

Finding the Fourth Proportional to 89,214.75, 123,116.36 and 49,470.75

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Solution

The fourth proportional to 89,214.75, 123,116.36 and 49,470.75 is: 68,269.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,214.75 : 123,116.36 = 49,470.75 : x
  2. Step 2: Convert to fraction form
    89,214.75/123,116.36 = 49,470.75/x
  3. Step 3: Cross multiply
    89,214.75x = 123,116.36 × 49,470.75
  4. Step 4: Simplify right side
    89,214.75x = 6,090,658,419.12
  5. Step 5: Solve for x
    x = 6,090,658,419.12/89,214.75
  6. Step 6: Final answer
    x = 68,269.64

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1.5x scale

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.