Home / 42,122.36-63,139.80-17,151.68

Finding the Fourth Proportional to 42,122.36, 63,139.80 and 17,151.68

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Solution

The fourth proportional to 42,122.36, 63,139.80 and 17,151.68 is: 25,709.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,122.36 : 63,139.80 = 17,151.68 : x
  2. Step 2: Convert to fraction form
    42,122.36/63,139.80 = 17,151.68/x
  3. Step 3: Cross multiply
    42,122.36x = 63,139.80 × 17,151.68
  4. Step 4: Simplify right side
    42,122.36x = 1,082,953,644.86
  5. Step 5: Solve for x
    x = 1,082,953,644.86/42,122.36
  6. Step 6: Final answer
    x = 25,709.71

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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.