Home / 78,769.45-118,094.03-39,354.24

Finding the Fourth Proportional to 78,769.45, 118,094.03 and 39,354.24

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Solution

The fourth proportional to 78,769.45, 118,094.03 and 39,354.24 is: 59,001.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,769.45 : 118,094.03 = 39,354.24 : x
  2. Step 2: Convert to fraction form
    78,769.45/118,094.03 = 39,354.24/x
  3. Step 3: Cross multiply
    78,769.45x = 118,094.03 × 39,354.24
  4. Step 4: Simplify right side
    78,769.45x = 4,647,500,799.19
  5. Step 5: Solve for x
    x = 4,647,500,799.19/78,769.45
  6. Step 6: Final answer
    x = 59,001.31

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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.