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Finding the Fourth Proportional to 68,858.77, 103,276.24 and 18,258.13

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Solution

The fourth proportional to 68,858.77, 103,276.24 and 18,258.13 is: 27,384.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,858.77 : 103,276.24 = 18,258.13 : x
  2. Step 2: Convert to fraction form
    68,858.77/103,276.24 = 18,258.13/x
  3. Step 3: Cross multiply
    68,858.77x = 103,276.24 × 18,258.13
  4. Step 4: Simplify right side
    68,858.77x = 1,885,631,015.83
  5. Step 5: Solve for x
    x = 1,885,631,015.83/68,858.77
  6. Step 6: Final answer
    x = 27,384.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.