Home / 71,878.41-99,192.33-40,048.44

Finding the Fourth Proportional to 71,878.41, 99,192.33 and 40,048.44

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Solution

The fourth proportional to 71,878.41, 99,192.33 and 40,048.44 is: 55,266.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,878.41 : 99,192.33 = 40,048.44 : x
  2. Step 2: Convert to fraction form
    71,878.41/99,192.33 = 40,048.44/x
  3. Step 3: Cross multiply
    71,878.41x = 99,192.33 × 40,048.44
  4. Step 4: Simplify right side
    71,878.41x = 3,972,498,076.47
  5. Step 5: Solve for x
    x = 3,972,498,076.47/71,878.41
  6. Step 6: Final answer
    x = 55,266.92

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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.