Home / 78,801.21-118,202.27-64,893.69

Finding the Fourth Proportional to 78,801.21, 118,202.27 and 64,893.69

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Solution

The fourth proportional to 78,801.21, 118,202.27 and 64,893.69 is: 97,340.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,801.21 : 118,202.27 = 64,893.69 : x
  2. Step 2: Convert to fraction form
    78,801.21/118,202.27 = 64,893.69/x
  3. Step 3: Cross multiply
    78,801.21x = 118,202.27 × 64,893.69
  4. Step 4: Simplify right side
    78,801.21x = 7,670,581,142.21
  5. Step 5: Solve for x
    x = 7,670,581,142.21/78,801.21
  6. Step 6: Final answer
    x = 97,340.91

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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.