Home / 78,731.79-118,062.14-22,559.03

Finding the Fourth Proportional to 78,731.79, 118,062.14 and 22,559.03

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Solution

The fourth proportional to 78,731.79, 118,062.14 and 22,559.03 is: 33,828.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,731.79 : 118,062.14 = 22,559.03 : x
  2. Step 2: Convert to fraction form
    78,731.79/118,062.14 = 22,559.03/x
  3. Step 3: Cross multiply
    78,731.79x = 118,062.14 × 22,559.03
  4. Step 4: Simplify right side
    78,731.79x = 2,663,367,540.48
  5. Step 5: Solve for x
    x = 2,663,367,540.48/78,731.79
  6. Step 6: Final answer
    x = 33,828.36

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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.