Home / 71,190.12-98,249.40-61,151.64

Finding the Fourth Proportional to 71,190.12, 98,249.40 and 61,151.64

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Solution

The fourth proportional to 71,190.12, 98,249.40 and 61,151.64 is: 84,395.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,190.12 : 98,249.40 = 61,151.64 : x
  2. Step 2: Convert to fraction form
    71,190.12/98,249.40 = 61,151.64/x
  3. Step 3: Cross multiply
    71,190.12x = 98,249.40 × 61,151.64
  4. Step 4: Simplify right side
    71,190.12x = 6,008,111,939.02
  5. Step 5: Solve for x
    x = 6,008,111,939.02/71,190.12
  6. Step 6: Final answer
    x = 84,395.31

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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.