Home / 78,779.97-118,175.33-22,615.75

Finding the Fourth Proportional to 78,779.97, 118,175.33 and 22,615.75

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Solution

The fourth proportional to 78,779.97, 118,175.33 and 22,615.75 is: 33,925.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,779.97 : 118,175.33 = 22,615.75 : x
  2. Step 2: Convert to fraction form
    78,779.97/118,175.33 = 22,615.75/x
  3. Step 3: Cross multiply
    78,779.97x = 118,175.33 × 22,615.75
  4. Step 4: Simplify right side
    78,779.97x = 2,672,623,719.45
  5. Step 5: Solve for x
    x = 2,672,623,719.45/78,779.97
  6. Step 6: Final answer
    x = 33,925.17

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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.