Home / 53,531.25-73,872.05-30,871.23

Finding the Fourth Proportional to 53,531.25, 73,872.05 and 30,871.23

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Solution

The fourth proportional to 53,531.25, 73,872.05 and 30,871.23 is: 42,601.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,531.25 : 73,872.05 = 30,871.23 : x
  2. Step 2: Convert to fraction form
    53,531.25/73,872.05 = 30,871.23/x
  3. Step 3: Cross multiply
    53,531.25x = 73,872.05 × 30,871.23
  4. Step 4: Simplify right side
    53,531.25x = 2,280,520,891.77
  5. Step 5: Solve for x
    x = 2,280,520,891.77/53,531.25
  6. Step 6: Final answer
    x = 42,601.67

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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.