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Finding the Fourth Proportional to 68,825.55, 94,970.16 and 38,609.71

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Solution

The fourth proportional to 68,825.55, 94,970.16 and 38,609.71 is: 53,276.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,825.55 : 94,970.16 = 38,609.71 : x
  2. Step 2: Convert to fraction form
    68,825.55/94,970.16 = 38,609.71/x
  3. Step 3: Cross multiply
    68,825.55x = 94,970.16 × 38,609.71
  4. Step 4: Simplify right side
    68,825.55x = 3,666,770,599.75
  5. Step 5: Solve for x
    x = 3,666,770,599.75/68,825.55
  6. Step 6: Final answer
    x = 53,276.30

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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.