Home / 80,971.17-111,740.75-45,163.50

Finding the Fourth Proportional to 80,971.17, 111,740.75 and 45,163.50

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Solution

The fourth proportional to 80,971.17, 111,740.75 and 45,163.50 is: 62,325.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,971.17 : 111,740.75 = 45,163.50 : x
  2. Step 2: Convert to fraction form
    80,971.17/111,740.75 = 45,163.50/x
  3. Step 3: Cross multiply
    80,971.17x = 111,740.75 × 45,163.50
  4. Step 4: Simplify right side
    80,971.17x = 5,046,603,362.63
  5. Step 5: Solve for x
    x = 5,046,603,362.63/80,971.17
  6. Step 6: Final answer
    x = 62,325.93

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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.