Home / 78,847.20-108,805.14-43,036.92

Finding the Fourth Proportional to 78,847.20, 108,805.14 and 43,036.92

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Solution

The fourth proportional to 78,847.20, 108,805.14 and 43,036.92 is: 59,388.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,847.20 : 108,805.14 = 43,036.92 : x
  2. Step 2: Convert to fraction form
    78,847.20/108,805.14 = 43,036.92/x
  3. Step 3: Cross multiply
    78,847.20x = 108,805.14 × 43,036.92
  4. Step 4: Simplify right side
    78,847.20x = 4,682,638,105.77
  5. Step 5: Solve for x
    x = 4,682,638,105.77/78,847.20
  6. Step 6: Final answer
    x = 59,388.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.