Home / 75,879.36-113,844.48-47,766.72

Finding the Fourth Proportional to 75,879.36, 113,844.48 and 47,766.72

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Solution

The fourth proportional to 75,879.36, 113,844.48 and 47,766.72 is: 71,666.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,879.36 : 113,844.48 = 47,766.72 : x
  2. Step 2: Convert to fraction form
    75,879.36/113,844.48 = 47,766.72/x
  3. Step 3: Cross multiply
    75,879.36x = 113,844.48 × 47,766.72
  4. Step 4: Simplify right side
    75,879.36x = 5,437,977,399.71
  5. Step 5: Solve for x
    x = 5,437,977,399.71/75,879.36
  6. Step 6: Final answer
    x = 71,666.09

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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.