Home / 51,121.68-70,543.08-28,764.24

Finding the Fourth Proportional to 51,121.68, 70,543.08 and 28,764.24

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Solution

The fourth proportional to 51,121.68, 70,543.08 and 28,764.24 is: 39,691.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,121.68 : 70,543.08 = 28,764.24 : x
  2. Step 2: Convert to fraction form
    51,121.68/70,543.08 = 28,764.24/x
  3. Step 3: Cross multiply
    51,121.68x = 70,543.08 × 28,764.24
  4. Step 4: Simplify right side
    51,121.68x = 2,029,118,083.46
  5. Step 5: Solve for x
    x = 2,029,118,083.46/51,121.68
  6. Step 6: Final answer
    x = 39,691.93

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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.