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Finding the Fourth Proportional to 85,098.92, 117,436.46 and 47,382.08

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Solution

The fourth proportional to 85,098.92, 117,436.46 and 47,382.08 is: 65,387.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,098.92 : 117,436.46 = 47,382.08 : x
  2. Step 2: Convert to fraction form
    85,098.92/117,436.46 = 47,382.08/x
  3. Step 3: Cross multiply
    85,098.92x = 117,436.46 × 47,382.08
  4. Step 4: Simplify right side
    85,098.92x = 5,564,383,742.64
  5. Step 5: Solve for x
    x = 5,564,383,742.64/85,098.92
  6. Step 6: Final answer
    x = 65,387.24

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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.