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Finding the Fourth Proportional to 85,229.92, 117,622.56 and 46,989.28

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Solution

The fourth proportional to 85,229.92, 117,622.56 and 46,989.28 is: 64,848.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,229.92 : 117,622.56 = 46,989.28 : x
  2. Step 2: Convert to fraction form
    85,229.92/117,622.56 = 46,989.28/x
  3. Step 3: Cross multiply
    85,229.92x = 117,622.56 × 46,989.28
  4. Step 4: Simplify right side
    85,229.92x = 5,526,999,406.16
  5. Step 5: Solve for x
    x = 5,526,999,406.16/85,229.92
  6. Step 6: Final answer
    x = 64,848.11

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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.