Home / 89,044.20-133,566.30-87,661.80

Finding the Fourth Proportional to 89,044.20, 133,566.30 and 87,661.80

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Solution

The fourth proportional to 89,044.20, 133,566.30 and 87,661.80 is: 131,492.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,044.20 : 133,566.30 = 87,661.80 : x
  2. Step 2: Convert to fraction form
    89,044.20/133,566.30 = 87,661.80/x
  3. Step 3: Cross multiply
    89,044.20x = 133,566.30 × 87,661.80
  4. Step 4: Simplify right side
    89,044.20x = 11,708,662,277.34
  5. Step 5: Solve for x
    x = 11,708,662,277.34/89,044.20
  6. Step 6: Final answer
    x = 131,492.70

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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.