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Finding the Fourth Proportional to 45,159.66, 67,762.62 and 21,493.98

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Solution

The fourth proportional to 45,159.66, 67,762.62 and 21,493.98 is: 32,251.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,159.66 : 67,762.62 = 21,493.98 : x
  2. Step 2: Convert to fraction form
    45,159.66/67,762.62 = 21,493.98/x
  3. Step 3: Cross multiply
    45,159.66x = 67,762.62 × 21,493.98
  4. Step 4: Simplify right side
    45,159.66x = 1,456,488,399.03
  5. Step 5: Solve for x
    x = 1,456,488,399.03/45,159.66
  6. Step 6: Final answer
    x = 32,251.98

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.