Home / 89,488.08-133,940.04-65,789.36

Finding the Fourth Proportional to 89,488.08, 133,940.04 and 65,789.36

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Solution

The fourth proportional to 89,488.08, 133,940.04 and 65,789.36 is: 98,469.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,488.08 : 133,940.04 = 65,789.36 : x
  2. Step 2: Convert to fraction form
    89,488.08/133,940.04 = 65,789.36/x
  3. Step 3: Cross multiply
    89,488.08x = 133,940.04 × 65,789.36
  4. Step 4: Simplify right side
    89,488.08x = 8,811,828,840.27
  5. Step 5: Solve for x
    x = 8,811,828,840.27/89,488.08
  6. Step 6: Final answer
    x = 98,469.30

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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.