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Finding the Fourth Proportional to 70,394.89, 97,145.29 and 38,563.79

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Solution

The fourth proportional to 70,394.89, 97,145.29 and 38,563.79 is: 53,218.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,394.89 : 97,145.29 = 38,563.79 : x
  2. Step 2: Convert to fraction form
    70,394.89/97,145.29 = 38,563.79/x
  3. Step 3: Cross multiply
    70,394.89x = 97,145.29 × 38,563.79
  4. Step 4: Simplify right side
    70,394.89x = 3,746,290,854.12
  5. Step 5: Solve for x
    x = 3,746,290,854.12/70,394.89
  6. Step 6: Final answer
    x = 53,218.22

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.