Home / 89,621.40-134,270.10-52,150.80

Finding the Fourth Proportional to 89,621.40, 134,270.10 and 52,150.80

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Solution

The fourth proportional to 89,621.40, 134,270.10 and 52,150.80 is: 78,131.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,621.40 : 134,270.10 = 52,150.80 : x
  2. Step 2: Convert to fraction form
    89,621.40/134,270.10 = 52,150.80/x
  3. Step 3: Cross multiply
    89,621.40x = 134,270.10 × 52,150.80
  4. Step 4: Simplify right side
    89,621.40x = 7,002,293,131.08
  5. Step 5: Solve for x
    x = 7,002,293,131.08/89,621.40
  6. Step 6: Final answer
    x = 78,131.93

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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.