Home / 78,676.44-118,036.56-34,307.10

Finding the Fourth Proportional to 78,676.44, 118,036.56 and 34,307.10

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Solution

The fourth proportional to 78,676.44, 118,036.56 and 34,307.10 is: 51,470.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,676.44 : 118,036.56 = 34,307.10 : x
  2. Step 2: Convert to fraction form
    78,676.44/118,036.56 = 34,307.10/x
  3. Step 3: Cross multiply
    78,676.44x = 118,036.56 × 34,307.10
  4. Step 4: Simplify right side
    78,676.44x = 4,049,492,067.58
  5. Step 5: Solve for x
    x = 4,049,492,067.58/78,676.44
  6. Step 6: Final answer
    x = 51,470.20

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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.