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Finding the Fourth Proportional to 85,353.57, 117,799.79 and 47,630.25

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Solution

The fourth proportional to 85,353.57, 117,799.79 and 47,630.25 is: 65,736.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,353.57 : 117,799.79 = 47,630.25 : x
  2. Step 2: Convert to fraction form
    85,353.57/117,799.79 = 47,630.25/x
  3. Step 3: Cross multiply
    85,353.57x = 117,799.79 × 47,630.25
  4. Step 4: Simplify right side
    85,353.57x = 5,610,833,209.50
  5. Step 5: Solve for x
    x = 5,610,833,209.50/85,353.57
  6. Step 6: Final answer
    x = 65,736.36

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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.