Home / 89,924.19-124,145.10-54,123

Finding the Fourth Proportional to 89,924.19, 124,145.10 and 54,123

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Solution

The fourth proportional to 89,924.19, 124,145.10 and 54,123 is: 74,719.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,924.19 : 124,145.10 = 54,123 : x
  2. Step 2: Convert to fraction form
    89,924.19/124,145.10 = 54,123/x
  3. Step 3: Cross multiply
    89,924.19x = 124,145.10 × 54,123
  4. Step 4: Simplify right side
    89,924.19x = 6,719,105,247.30
  5. Step 5: Solve for x
    x = 6,719,105,247.30/89,924.19
  6. Step 6: Final answer
    x = 74,719.66

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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.