Home / 42,110.36-63,121.62-17,140.40

Finding the Fourth Proportional to 42,110.36, 63,121.62 and 17,140.40

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Solution

The fourth proportional to 42,110.36, 63,121.62 and 17,140.40 is: 25,692.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,110.36 : 63,121.62 = 17,140.40 : x
  2. Step 2: Convert to fraction form
    42,110.36/63,121.62 = 17,140.40/x
  3. Step 3: Cross multiply
    42,110.36x = 63,121.62 × 17,140.40
  4. Step 4: Simplify right side
    42,110.36x = 1,081,929,815.45
  5. Step 5: Solve for x
    x = 1,081,929,815.45/42,110.36
  6. Step 6: Final answer
    x = 25,692.72

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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.