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Finding the Fourth Proportional to 68,116.48, 93,999.84 and 38,308.48

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Solution

The fourth proportional to 68,116.48, 93,999.84 and 38,308.48 is: 52,865.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,116.48 : 93,999.84 = 38,308.48 : x
  2. Step 2: Convert to fraction form
    68,116.48/93,999.84 = 38,308.48/x
  3. Step 3: Cross multiply
    68,116.48x = 93,999.84 × 38,308.48
  4. Step 4: Simplify right side
    68,116.48x = 3,600,990,990.64
  5. Step 5: Solve for x
    x = 3,600,990,990.64/68,116.48
  6. Step 6: Final answer
    x = 52,865.19

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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.