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Finding the Fourth Proportional to 89,030.60, 133,373.10 and 82,809.80

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Solution

The fourth proportional to 89,030.60, 133,373.10 and 82,809.80 is: 124,053.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,030.60 : 133,373.10 = 82,809.80 : x
  2. Step 2: Convert to fraction form
    89,030.60/133,373.10 = 82,809.80/x
  3. Step 3: Cross multiply
    89,030.60x = 133,373.10 × 82,809.80
  4. Step 4: Simplify right side
    89,030.60x = 11,044,599,736.38
  5. Step 5: Solve for x
    x = 11,044,599,736.38/89,030.60
  6. Step 6: Final answer
    x = 124,053.97

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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.