Home / 78,466.44-108,282.40-42,657.35

Finding the Fourth Proportional to 78,466.44, 108,282.40 and 42,657.35

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Solution

The fourth proportional to 78,466.44, 108,282.40 and 42,657.35 is: 58,866.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,466.44 : 108,282.40 = 42,657.35 : x
  2. Step 2: Convert to fraction form
    78,466.44/108,282.40 = 42,657.35/x
  3. Step 3: Cross multiply
    78,466.44x = 108,282.40 × 42,657.35
  4. Step 4: Simplify right side
    78,466.44x = 4,619,040,022.35
  5. Step 5: Solve for x
    x = 4,619,040,022.35/78,466.44
  6. Step 6: Final answer
    x = 58,866.44

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.