Home / 86,401.72-129,415.04-41,935.02

Finding the Fourth Proportional to 86,401.72, 129,415.04 and 41,935.02

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Solution

The fourth proportional to 86,401.72, 129,415.04 and 41,935.02 is: 62,811.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,401.72 : 129,415.04 = 41,935.02 : x
  2. Step 2: Convert to fraction form
    86,401.72/129,415.04 = 41,935.02/x
  3. Step 3: Cross multiply
    86,401.72x = 129,415.04 × 41,935.02
  4. Step 4: Simplify right side
    86,401.72x = 5,427,022,290.70
  5. Step 5: Solve for x
    x = 5,427,022,290.70/86,401.72
  6. Step 6: Final answer
    x = 62,811.51

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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.