Home / 89,206.60-133,766.70-49,721.80

Finding the Fourth Proportional to 89,206.60, 133,766.70 and 49,721.80

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Solution

The fourth proportional to 89,206.60, 133,766.70 and 49,721.80 is: 74,558.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,206.60 : 133,766.70 = 49,721.80 : x
  2. Step 2: Convert to fraction form
    89,206.60/133,766.70 = 49,721.80/x
  3. Step 3: Cross multiply
    89,206.60x = 133,766.70 × 49,721.80
  4. Step 4: Simplify right side
    89,206.60x = 6,651,121,104.06
  5. Step 5: Solve for x
    x = 6,651,121,104.06/89,206.60
  6. Step 6: Final answer
    x = 74,558.62

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.