Home / 51,702.50-77,542.21-20,102.18

Finding the Fourth Proportional to 51,702.50, 77,542.21 and 20,102.18

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Solution

The fourth proportional to 51,702.50, 77,542.21 and 20,102.18 is: 30,148.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,702.50 : 77,542.21 = 20,102.18 : x
  2. Step 2: Convert to fraction form
    51,702.50/77,542.21 = 20,102.18/x
  3. Step 3: Cross multiply
    51,702.50x = 77,542.21 × 20,102.18
  4. Step 4: Simplify right side
    51,702.50x = 1,558,767,100.43
  5. Step 5: Solve for x
    x = 1,558,767,100.43/51,702.50
  6. Step 6: Final answer
    x = 30,148.77

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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.