Home / 75,529.20-113,293.80-68,012.40

Finding the Fourth Proportional to 75,529.20, 113,293.80 and 68,012.40

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Solution

The fourth proportional to 75,529.20, 113,293.80 and 68,012.40 is: 102,018.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,529.20 : 113,293.80 = 68,012.40 : x
  2. Step 2: Convert to fraction form
    75,529.20/113,293.80 = 68,012.40/x
  3. Step 3: Cross multiply
    75,529.20x = 113,293.80 × 68,012.40
  4. Step 4: Simplify right side
    75,529.20x = 7,705,383,243.12
  5. Step 5: Solve for x
    x = 7,705,383,243.12/75,529.20
  6. Step 6: Final answer
    x = 102,018.60

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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.