Home / 75,518.88-113,111.52-68,544.18

Finding the Fourth Proportional to 75,518.88, 113,111.52 and 68,544.18

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Solution

The fourth proportional to 75,518.88, 113,111.52 and 68,544.18 is: 102,664.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,518.88 : 113,111.52 = 68,544.18 : x
  2. Step 2: Convert to fraction form
    75,518.88/113,111.52 = 68,544.18/x
  3. Step 3: Cross multiply
    75,518.88x = 113,111.52 × 68,544.18
  4. Step 4: Simplify right side
    75,518.88x = 7,753,136,386.95
  5. Step 5: Solve for x
    x = 7,753,136,386.95/75,518.88
  6. Step 6: Final answer
    x = 102,664.88

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1.5x scale

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.