Home / 89,719.78-123,802.50-51,477.22

Finding the Fourth Proportional to 89,719.78, 123,802.50 and 51,477.22

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Solution

The fourth proportional to 89,719.78, 123,802.50 and 51,477.22 is: 71,032.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,719.78 : 123,802.50 = 51,477.22 : x
  2. Step 2: Convert to fraction form
    89,719.78/123,802.50 = 51,477.22/x
  3. Step 3: Cross multiply
    89,719.78x = 123,802.50 × 51,477.22
  4. Step 4: Simplify right side
    89,719.78x = 6,373,008,529.05
  5. Step 5: Solve for x
    x = 6,373,008,529.05/89,719.78
  6. Step 6: Final answer
    x = 71,032.37

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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.