Home / 75,738.40-113,607.60-31,359.04

Finding the Fourth Proportional to 75,738.40, 113,607.60 and 31,359.04

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Solution

The fourth proportional to 75,738.40, 113,607.60 and 31,359.04 is: 47,038.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,738.40 : 113,607.60 = 31,359.04 : x
  2. Step 2: Convert to fraction form
    75,738.40/113,607.60 = 31,359.04/x
  3. Step 3: Cross multiply
    75,738.40x = 113,607.60 × 31,359.04
  4. Step 4: Simplify right side
    75,738.40x = 3,562,625,272.70
  5. Step 5: Solve for x
    x = 3,562,625,272.70/75,738.40
  6. Step 6: Final answer
    x = 47,038.56

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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.