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Finding the Fourth Proportional to 79,878.62, 110,237.87 and 45,898.11

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Solution

The fourth proportional to 79,878.62, 110,237.87 and 45,898.11 is: 63,342.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,878.62 : 110,237.87 = 45,898.11 : x
  2. Step 2: Convert to fraction form
    79,878.62/110,237.87 = 45,898.11/x
  3. Step 3: Cross multiply
    79,878.62x = 110,237.87 × 45,898.11
  4. Step 4: Simplify right side
    79,878.62x = 5,059,709,998.17
  5. Step 5: Solve for x
    x = 5,059,709,998.17/79,878.62
  6. Step 6: Final answer
    x = 63,342.48

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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.