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Finding the Fourth Proportional to 52,254.60, 78,359.22 and 18,963.60

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Solution

The fourth proportional to 52,254.60, 78,359.22 and 18,963.60 is: 28,437.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,254.60 : 78,359.22 = 18,963.60 : x
  2. Step 2: Convert to fraction form
    52,254.60/78,359.22 = 18,963.60/x
  3. Step 3: Cross multiply
    52,254.60x = 78,359.22 × 18,963.60
  4. Step 4: Simplify right side
    52,254.60x = 1,485,972,904.39
  5. Step 5: Solve for x
    x = 1,485,972,904.39/52,254.60
  6. Step 6: Final answer
    x = 28,437.17

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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.