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Finding the Fourth Proportional to 68,810.56, 94,959.68 and 38,602.60

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Solution

The fourth proportional to 68,810.56, 94,959.68 and 38,602.60 is: 53,272.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,810.56 : 94,959.68 = 38,602.60 : x
  2. Step 2: Convert to fraction form
    68,810.56/94,959.68 = 38,602.60/x
  3. Step 3: Cross multiply
    68,810.56x = 94,959.68 × 38,602.60
  4. Step 4: Simplify right side
    68,810.56x = 3,665,690,543.17
  5. Step 5: Solve for x
    x = 3,665,690,543.17/68,810.56
  6. Step 6: Final answer
    x = 53,272.21

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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.