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Finding the Fourth Proportional to 71,076.34, 98,091.12 and 40,871.48

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Solution

The fourth proportional to 71,076.34, 98,091.12 and 40,871.48 is: 56,405.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,076.34 : 98,091.12 = 40,871.48 : x
  2. Step 2: Convert to fraction form
    71,076.34/98,091.12 = 40,871.48/x
  3. Step 3: Cross multiply
    71,076.34x = 98,091.12 × 40,871.48
  4. Step 4: Simplify right side
    71,076.34x = 4,009,129,249.26
  5. Step 5: Solve for x
    x = 4,009,129,249.26/71,076.34
  6. Step 6: Final answer
    x = 56,405.96

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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.