Home / 51,179.76-70,627-28,518.66

Finding the Fourth Proportional to 51,179.76, 70,627 and 28,518.66

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Solution

The fourth proportional to 51,179.76, 70,627 and 28,518.66 is: 39,355.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,179.76 : 70,627 = 28,518.66 : x
  2. Step 2: Convert to fraction form
    51,179.76/70,627 = 28,518.66/x
  3. Step 3: Cross multiply
    51,179.76x = 70,627 × 28,518.66
  4. Step 4: Simplify right side
    51,179.76x = 2,014,187,399.82
  5. Step 5: Solve for x
    x = 2,014,187,399.82/51,179.76
  6. Step 6: Final answer
    x = 39,355.16

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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.