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Finding the Fourth Proportional to 85,277.25, 117,686.25 and 47,551.50

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Solution

The fourth proportional to 85,277.25, 117,686.25 and 47,551.50 is: 65,623.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,277.25 : 117,686.25 = 47,551.50 : x
  2. Step 2: Convert to fraction form
    85,277.25/117,686.25 = 47,551.50/x
  3. Step 3: Cross multiply
    85,277.25x = 117,686.25 × 47,551.50
  4. Step 4: Simplify right side
    85,277.25x = 5,596,157,716.88
  5. Step 5: Solve for x
    x = 5,596,157,716.88/85,277.25
  6. Step 6: Final answer
    x = 65,623.10

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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.