Home / 85,212.10-117,805.27-63,954.46

Finding the Fourth Proportional to 85,212.10, 117,805.27 and 63,954.46

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Solution

The fourth proportional to 85,212.10, 117,805.27 and 63,954.46 is: 88,416.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,212.10 : 117,805.27 = 63,954.46 : x
  2. Step 2: Convert to fraction form
    85,212.10/117,805.27 = 63,954.46/x
  3. Step 3: Cross multiply
    85,212.10x = 117,805.27 × 63,954.46
  4. Step 4: Simplify right side
    85,212.10x = 7,534,171,838.98
  5. Step 5: Solve for x
    x = 7,534,171,838.98/85,212.10
  6. Step 6: Final answer
    x = 88,416.70

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1.5x scale

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.