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Finding the Fourth Proportional to 70,679.76, 97,538.28 and 38,851.92

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Solution

The fourth proportional to 70,679.76, 97,538.28 and 38,851.92 is: 53,615.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,679.76 : 97,538.28 = 38,851.92 : x
  2. Step 2: Convert to fraction form
    70,679.76/97,538.28 = 38,851.92/x
  3. Step 3: Cross multiply
    70,679.76x = 97,538.28 × 38,851.92
  4. Step 4: Simplify right side
    70,679.76x = 3,789,549,451.50
  5. Step 5: Solve for x
    x = 3,789,549,451.50/70,679.76
  6. Step 6: Final answer
    x = 53,615.77

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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.