Home / 51,422.61-70,962.87-28,761.48

Finding the Fourth Proportional to 51,422.61, 70,962.87 and 28,761.48

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Solution

The fourth proportional to 51,422.61, 70,962.87 and 28,761.48 is: 39,690.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,422.61 : 70,962.87 = 28,761.48 : x
  2. Step 2: Convert to fraction form
    51,422.61/70,962.87 = 28,761.48/x
  3. Step 3: Cross multiply
    51,422.61x = 70,962.87 × 28,761.48
  4. Step 4: Simplify right side
    51,422.61x = 2,040,997,166.25
  5. Step 5: Solve for x
    x = 2,040,997,166.25/51,422.61
  6. Step 6: Final answer
    x = 39,690.66

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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.