Home / 78,848.85-118,227.83-53,919.10

Finding the Fourth Proportional to 78,848.85, 118,227.83 and 53,919.10

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Solution

The fourth proportional to 78,848.85, 118,227.83 and 53,919.10 is: 80,847.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,848.85 : 118,227.83 = 53,919.10 : x
  2. Step 2: Convert to fraction form
    78,848.85/118,227.83 = 53,919.10/x
  3. Step 3: Cross multiply
    78,848.85x = 118,227.83 × 53,919.10
  4. Step 4: Simplify right side
    78,848.85x = 6,374,738,218.39
  5. Step 5: Solve for x
    x = 6,374,738,218.39/78,848.85
  6. Step 6: Final answer
    x = 80,847.57

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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.