Home / 68,800.98-94,945.51-40,140.35

Finding the Fourth Proportional to 68,800.98, 94,945.51 and 40,140.35

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Solution

The fourth proportional to 68,800.98, 94,945.51 and 40,140.35 is: 55,393.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,800.98 : 94,945.51 = 40,140.35 : x
  2. Step 2: Convert to fraction form
    68,800.98/94,945.51 = 40,140.35/x
  3. Step 3: Cross multiply
    68,800.98x = 94,945.51 × 40,140.35
  4. Step 4: Simplify right side
    68,800.98x = 3,811,146,002.33
  5. Step 5: Solve for x
    x = 3,811,146,002.33/68,800.98
  6. Step 6: Final answer
    x = 55,393.77

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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.