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Finding the Fourth Proportional to 45,324, 67,920.30 and 25,560.54

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Solution

The fourth proportional to 45,324, 67,920.30 and 25,560.54 is: 38,303.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,324 : 67,920.30 = 25,560.54 : x
  2. Step 2: Convert to fraction form
    45,324/67,920.30 = 25,560.54/x
  3. Step 3: Cross multiply
    45,324x = 67,920.30 × 25,560.54
  4. Step 4: Simplify right side
    45,324x = 1,736,079,544.96
  5. Step 5: Solve for x
    x = 1,736,079,544.96/45,324
  6. Step 6: Final answer
    x = 38,303.76

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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.