Home / 78,101.28-117,152.16-36,577.44

Finding the Fourth Proportional to 78,101.28, 117,152.16 and 36,577.44

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Solution

The fourth proportional to 78,101.28, 117,152.16 and 36,577.44 is: 54,866.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,101.28 : 117,152.16 = 36,577.44 : x
  2. Step 2: Convert to fraction form
    78,101.28/117,152.16 = 36,577.44/x
  3. Step 3: Cross multiply
    78,101.28x = 117,152.16 × 36,577.44
  4. Step 4: Simplify right side
    78,101.28x = 4,285,126,103.27
  5. Step 5: Solve for x
    x = 4,285,126,103.27/78,101.28
  6. Step 6: Final answer
    x = 54,866.27

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1.5x scale

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.