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Finding the Fourth Proportional to 79,880.62, 110,240.63 and 45,900.11

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Solution

The fourth proportional to 79,880.62, 110,240.63 and 45,900.11 is: 63,345.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,880.62 : 110,240.63 = 45,900.11 : x
  2. Step 2: Convert to fraction form
    79,880.62/110,240.63 = 45,900.11/x
  3. Step 3: Cross multiply
    79,880.62x = 110,240.63 × 45,900.11
  4. Step 4: Simplify right side
    79,880.62x = 5,060,057,043.47
  5. Step 5: Solve for x
    x = 5,060,057,043.47/79,880.62
  6. Step 6: Final answer
    x = 63,345.24

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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.