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Finding the Fourth Proportional to 48,120, 66,405.60 and 26,898.82

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Solution

The fourth proportional to 48,120, 66,405.60 and 26,898.82 is: 37,120.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,120 : 66,405.60 = 26,898.82 : x
  2. Step 2: Convert to fraction form
    48,120/66,405.60 = 26,898.82/x
  3. Step 3: Cross multiply
    48,120x = 66,405.60 × 26,898.82
  4. Step 4: Simplify right side
    48,120x = 1,786,232,281.39
  5. Step 5: Solve for x
    x = 1,786,232,281.39/48,120
  6. Step 6: Final answer
    x = 37,120.37

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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.