Home / 97,976.64-135,193.44-57,666.72

Finding the Fourth Proportional to 97,976.64, 135,193.44 and 57,666.72

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Solution

The fourth proportional to 97,976.64, 135,193.44 and 57,666.72 is: 79,571.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,976.64 : 135,193.44 = 57,666.72 : x
  2. Step 2: Convert to fraction form
    97,976.64/135,193.44 = 57,666.72/x
  3. Step 3: Cross multiply
    97,976.64x = 135,193.44 × 57,666.72
  4. Step 4: Simplify right side
    97,976.64x = 7,796,162,250.32
  5. Step 5: Solve for x
    x = 7,796,162,250.32/97,976.64
  6. Step 6: Final answer
    x = 79,571.64

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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.