Home / 78,466.08-117,693.71-25,157.28

Finding the Fourth Proportional to 78,466.08, 117,693.71 and 25,157.28

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Solution

The fourth proportional to 78,466.08, 117,693.71 and 25,157.28 is: 37,734.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,466.08 : 117,693.71 = 25,157.28 : x
  2. Step 2: Convert to fraction form
    78,466.08/117,693.71 = 25,157.28/x
  3. Step 3: Cross multiply
    78,466.08x = 117,693.71 × 25,157.28
  4. Step 4: Simplify right side
    78,466.08x = 2,960,853,028.24
  5. Step 5: Solve for x
    x = 2,960,853,028.24/78,466.08
  6. Step 6: Final answer
    x = 37,734.18

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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.