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Finding the Fourth Proportional to 73,484.28, 101,409 and 39,951

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Solution

The fourth proportional to 73,484.28, 101,409 and 39,951 is: 55,132.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,484.28 : 101,409 = 39,951 : x
  2. Step 2: Convert to fraction form
    73,484.28/101,409 = 39,951/x
  3. Step 3: Cross multiply
    73,484.28x = 101,409 × 39,951
  4. Step 4: Simplify right side
    73,484.28x = 4,051,390,959
  5. Step 5: Solve for x
    x = 4,051,390,959/73,484.28
  6. Step 6: Final answer
    x = 55,132.76

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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.