Home / 71,086.35-98,115.98-40,889.12

Finding the Fourth Proportional to 71,086.35, 98,115.98 and 40,889.12

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Solution

The fourth proportional to 71,086.35, 98,115.98 and 40,889.12 is: 56,436.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,086.35 : 98,115.98 = 40,889.12 : x
  2. Step 2: Convert to fraction form
    71,086.35/98,115.98 = 40,889.12/x
  3. Step 3: Cross multiply
    71,086.35x = 98,115.98 × 40,889.12
  4. Step 4: Simplify right side
    71,086.35x = 4,011,875,385.11
  5. Step 5: Solve for x
    x = 4,011,875,385.11/71,086.35
  6. Step 6: Final answer
    x = 56,436.65

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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.