Home / 78,493.44-117,739.52-36,917.76

Finding the Fourth Proportional to 78,493.44, 117,739.52 and 36,917.76

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Solution

The fourth proportional to 78,493.44, 117,739.52 and 36,917.76 is: 55,376.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,493.44 : 117,739.52 = 36,917.76 : x
  2. Step 2: Convert to fraction form
    78,493.44/117,739.52 = 36,917.76/x
  3. Step 3: Cross multiply
    78,493.44x = 117,739.52 × 36,917.76
  4. Step 4: Simplify right side
    78,493.44x = 4,346,679,341.88
  5. Step 5: Solve for x
    x = 4,346,679,341.88/78,493.44
  6. Step 6: Final answer
    x = 55,376.34

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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.