Home / 71,799.96-99,060.66-39,962.64

Finding the Fourth Proportional to 71,799.96, 99,060.66 and 39,962.64

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Solution

The fourth proportional to 71,799.96, 99,060.66 and 39,962.64 is: 55,135.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,799.96 : 99,060.66 = 39,962.64 : x
  2. Step 2: Convert to fraction form
    71,799.96/99,060.66 = 39,962.64/x
  3. Step 3: Cross multiply
    71,799.96x = 99,060.66 × 39,962.64
  4. Step 4: Simplify right side
    71,799.96x = 3,958,725,493.74
  5. Step 5: Solve for x
    x = 3,958,725,493.74/71,799.96
  6. Step 6: Final answer
    x = 55,135.48

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1.5x scale

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.