Home / 49,091.12-73,636.98-20,987.49

Finding the Fourth Proportional to 49,091.12, 73,636.98 and 20,987.49

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Solution

The fourth proportional to 49,091.12, 73,636.98 and 20,987.49 is: 31,481.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,091.12 : 73,636.98 = 20,987.49 : x
  2. Step 2: Convert to fraction form
    49,091.12/73,636.98 = 20,987.49/x
  3. Step 3: Cross multiply
    49,091.12x = 73,636.98 × 20,987.49
  4. Step 4: Simplify right side
    49,091.12x = 1,545,455,381.38
  5. Step 5: Solve for x
    x = 1,545,455,381.38/49,091.12
  6. Step 6: Final answer
    x = 31,481.36

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1.5x scale

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.