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Finding the Fourth Proportional to 73,415.52, 110,123.28 and 20,825.40

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Solution

The fourth proportional to 73,415.52, 110,123.28 and 20,825.40 is: 31,238.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,415.52 : 110,123.28 = 20,825.40 : x
  2. Step 2: Convert to fraction form
    73,415.52/110,123.28 = 20,825.40/x
  3. Step 3: Cross multiply
    73,415.52x = 110,123.28 × 20,825.40
  4. Step 4: Simplify right side
    73,415.52x = 2,293,361,355.31
  5. Step 5: Solve for x
    x = 2,293,361,355.31/73,415.52
  6. Step 6: Final answer
    x = 31,238.10

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1.5x scale

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.