Home / 51,543.01-71,128.15-30,323.64

Finding the Fourth Proportional to 51,543.01, 71,128.15 and 30,323.64

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Solution

The fourth proportional to 51,543.01, 71,128.15 and 30,323.64 is: 41,845.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,543.01 : 71,128.15 = 30,323.64 : x
  2. Step 2: Convert to fraction form
    51,543.01/71,128.15 = 30,323.64/x
  3. Step 3: Cross multiply
    51,543.01x = 71,128.15 × 30,323.64
  4. Step 4: Simplify right side
    51,543.01x = 2,156,864,414.47
  5. Step 5: Solve for x
    x = 2,156,864,414.47/51,543.01
  6. Step 6: Final answer
    x = 41,845.91

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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.