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Finding the Fourth Proportional to 70,281.54, 96,995.20 and 38,455.22

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Solution

The fourth proportional to 70,281.54, 96,995.20 and 38,455.22 is: 53,071.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,281.54 : 96,995.20 = 38,455.22 : x
  2. Step 2: Convert to fraction form
    70,281.54/96,995.20 = 38,455.22/x
  3. Step 3: Cross multiply
    70,281.54x = 96,995.20 × 38,455.22
  4. Step 4: Simplify right side
    70,281.54x = 3,729,971,754.94
  5. Step 5: Solve for x
    x = 3,729,971,754.94/70,281.54
  6. Step 6: Final answer
    x = 53,071.86

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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.