Home / 51,415.98-70,951.23-28,755.87

Finding the Fourth Proportional to 51,415.98, 70,951.23 and 28,755.87

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Solution

The fourth proportional to 51,415.98, 70,951.23 and 28,755.87 is: 39,681.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,415.98 : 70,951.23 = 28,755.87 : x
  2. Step 2: Convert to fraction form
    51,415.98/70,951.23 = 28,755.87/x
  3. Step 3: Cross multiply
    51,415.98x = 70,951.23 × 28,755.87
  4. Step 4: Simplify right side
    51,415.98x = 2,040,264,346.22
  5. Step 5: Solve for x
    x = 2,040,264,346.22/51,415.98
  6. Step 6: Final answer
    x = 39,681.52

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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.