Home / 51,201.61-70,655.97-28,543.09

Finding the Fourth Proportional to 51,201.61, 70,655.97 and 28,543.09

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Solution

The fourth proportional to 51,201.61, 70,655.97 and 28,543.09 is: 39,388.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,201.61 : 70,655.97 = 28,543.09 : x
  2. Step 2: Convert to fraction form
    51,201.61/70,655.97 = 28,543.09/x
  3. Step 3: Cross multiply
    51,201.61x = 70,655.97 × 28,543.09
  4. Step 4: Simplify right side
    51,201.61x = 2,016,739,710.75
  5. Step 5: Solve for x
    x = 2,016,739,710.75/51,201.61
  6. Step 6: Final answer
    x = 39,388.21

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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.