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Finding the Fourth Proportional to 70,607.33, 97,438.76 and 38,776.47

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Solution

The fourth proportional to 70,607.33, 97,438.76 and 38,776.47 is: 53,511.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,607.33 : 97,438.76 = 38,776.47 : x
  2. Step 2: Convert to fraction form
    70,607.33/97,438.76 = 38,776.47/x
  3. Step 3: Cross multiply
    70,607.33x = 97,438.76 × 38,776.47
  4. Step 4: Simplify right side
    70,607.33x = 3,778,331,153.98
  5. Step 5: Solve for x
    x = 3,778,331,153.98/70,607.33
  6. Step 6: Final answer
    x = 53,511.88

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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.