Home / 78,799.43-118,214.33-25,504.63

Finding the Fourth Proportional to 78,799.43, 118,214.33 and 25,504.63

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Solution

The fourth proportional to 78,799.43, 118,214.33 and 25,504.63 is: 38,261.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,799.43 : 118,214.33 = 25,504.63 : x
  2. Step 2: Convert to fraction form
    78,799.43/118,214.33 = 25,504.63/x
  3. Step 3: Cross multiply
    78,799.43x = 118,214.33 × 25,504.63
  4. Step 4: Simplify right side
    78,799.43x = 3,015,013,381.89
  5. Step 5: Solve for x
    x = 3,015,013,381.89/78,799.43
  6. Step 6: Final answer
    x = 38,261.87

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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.