Home / 42,140.23-63,212.77-15,845.20

Finding the Fourth Proportional to 42,140.23, 63,212.77 and 15,845.20

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Solution

The fourth proportional to 42,140.23, 63,212.77 and 15,845.20 is: 23,768.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,140.23 : 63,212.77 = 15,845.20 : x
  2. Step 2: Convert to fraction form
    42,140.23/63,212.77 = 15,845.20/x
  3. Step 3: Cross multiply
    42,140.23x = 63,212.77 × 15,845.20
  4. Step 4: Simplify right side
    42,140.23x = 1,001,619,022.82
  5. Step 5: Solve for x
    x = 1,001,619,022.82/42,140.23
  6. Step 6: Final answer
    x = 23,768.71

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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.