Home / 42,117.11-63,190.70-18,091.32

Finding the Fourth Proportional to 42,117.11, 63,190.70 and 18,091.32

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Solution

The fourth proportional to 42,117.11, 63,190.70 and 18,091.32 is: 27,143.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,117.11 : 63,190.70 = 18,091.32 : x
  2. Step 2: Convert to fraction form
    42,117.11/63,190.70 = 18,091.32/x
  3. Step 3: Cross multiply
    42,117.11x = 63,190.70 × 18,091.32
  4. Step 4: Simplify right side
    42,117.11x = 1,143,203,152.11
  5. Step 5: Solve for x
    x = 1,143,203,152.11/42,117.11
  6. Step 6: Final answer
    x = 27,143.44

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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.