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Finding the Fourth Proportional to 79,749.52, 110,051.74 and 45,757.47

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Solution

The fourth proportional to 79,749.52, 110,051.74 and 45,757.47 is: 63,143.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,749.52 : 110,051.74 = 45,757.47 : x
  2. Step 2: Convert to fraction form
    79,749.52/110,051.74 = 45,757.47/x
  3. Step 3: Cross multiply
    79,749.52x = 110,051.74 × 45,757.47
  4. Step 4: Simplify right side
    79,749.52x = 5,035,689,068.42
  5. Step 5: Solve for x
    x = 5,035,689,068.42/79,749.52
  6. Step 6: Final answer
    x = 63,143.81

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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.