Home / 86,333.75-129,519.15-48,911.75

Finding the Fourth Proportional to 86,333.75, 129,519.15 and 48,911.75

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Solution

The fourth proportional to 86,333.75, 129,519.15 and 48,911.75 is: 73,378.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,333.75 : 129,519.15 = 48,911.75 : x
  2. Step 2: Convert to fraction form
    86,333.75/129,519.15 = 48,911.75/x
  3. Step 3: Cross multiply
    86,333.75x = 129,519.15 × 48,911.75
  4. Step 4: Simplify right side
    86,333.75x = 6,335,008,285.01
  5. Step 5: Solve for x
    x = 6,335,008,285.01/86,333.75
  6. Step 6: Final answer
    x = 73,378.12

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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.