Home / 64,932.80-97,399.20-57,715.70

Finding the Fourth Proportional to 64,932.80, 97,399.20 and 57,715.70

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Solution

The fourth proportional to 64,932.80, 97,399.20 and 57,715.70 is: 86,573.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,932.80 : 97,399.20 = 57,715.70 : x
  2. Step 2: Convert to fraction form
    64,932.80/97,399.20 = 57,715.70/x
  3. Step 3: Cross multiply
    64,932.80x = 97,399.20 × 57,715.70
  4. Step 4: Simplify right side
    64,932.80x = 5,621,463,007.44
  5. Step 5: Solve for x
    x = 5,621,463,007.44/64,932.80
  6. Step 6: Final answer
    x = 86,573.55

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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.