Home / 97,039.80-133,976.43-66,464.19

Finding the Fourth Proportional to 97,039.80, 133,976.43 and 66,464.19

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Solution

The fourth proportional to 97,039.80, 133,976.43 and 66,464.19 is: 91,762.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,039.80 : 133,976.43 = 66,464.19 : x
  2. Step 2: Convert to fraction form
    97,039.80/133,976.43 = 66,464.19/x
  3. Step 3: Cross multiply
    97,039.80x = 133,976.43 × 66,464.19
  4. Step 4: Simplify right side
    97,039.80x = 8,904,634,899.04
  5. Step 5: Solve for x
    x = 8,904,634,899.04/97,039.80
  6. Step 6: Final answer
    x = 91,762.71

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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.