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Finding the Fourth Proportional to 68,552.10, 94,602.06 and 39,878.64

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Solution

The fourth proportional to 68,552.10, 94,602.06 and 39,878.64 is: 55,032.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,552.10 : 94,602.06 = 39,878.64 : x
  2. Step 2: Convert to fraction form
    68,552.10/94,602.06 = 39,878.64/x
  3. Step 3: Cross multiply
    68,552.10x = 94,602.06 × 39,878.64
  4. Step 4: Simplify right side
    68,552.10x = 3,772,601,494.00
  5. Step 5: Solve for x
    x = 3,772,601,494.00/68,552.10
  6. Step 6: Final answer
    x = 55,032.62

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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.