Home / 89,431.68-123,388.81-53,608.62

Finding the Fourth Proportional to 89,431.68, 123,388.81 and 53,608.62

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Solution

The fourth proportional to 89,431.68, 123,388.81 and 53,608.62 is: 73,963.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,431.68 : 123,388.81 = 53,608.62 : x
  2. Step 2: Convert to fraction form
    89,431.68/123,388.81 = 53,608.62/x
  3. Step 3: Cross multiply
    89,431.68x = 123,388.81 × 53,608.62
  4. Step 4: Simplify right side
    89,431.68x = 6,614,703,827.54
  5. Step 5: Solve for x
    x = 6,614,703,827.54/89,431.68
  6. Step 6: Final answer
    x = 73,963.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.