Home / 89,775.36-123,890.16-51,536.16

Finding the Fourth Proportional to 89,775.36, 123,890.16 and 51,536.16

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Solution

The fourth proportional to 89,775.36, 123,890.16 and 51,536.16 is: 71,119.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,775.36 : 123,890.16 = 51,536.16 : x
  2. Step 2: Convert to fraction form
    89,775.36/123,890.16 = 51,536.16/x
  3. Step 3: Cross multiply
    89,775.36x = 123,890.16 × 51,536.16
  4. Step 4: Simplify right side
    89,775.36x = 6,384,823,108.19
  5. Step 5: Solve for x
    x = 6,384,823,108.19/89,775.36
  6. Step 6: Final answer
    x = 71,119.99

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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.