Home / 64,799.42-96,979.59-39,855.29

Finding the Fourth Proportional to 64,799.42, 96,979.59 and 39,855.29

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Solution

The fourth proportional to 64,799.42, 96,979.59 and 39,855.29 is: 59,647.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,799.42 : 96,979.59 = 39,855.29 : x
  2. Step 2: Convert to fraction form
    64,799.42/96,979.59 = 39,855.29/x
  3. Step 3: Cross multiply
    64,799.42x = 96,979.59 × 39,855.29
  4. Step 4: Simplify right side
    64,799.42x = 3,865,149,198.63
  5. Step 5: Solve for x
    x = 3,865,149,198.63/64,799.42
  6. Step 6: Final answer
    x = 59,647.90

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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.