Home / 51,129.58-70,558.24-28,468.08

Finding the Fourth Proportional to 51,129.58, 70,558.24 and 28,468.08

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Solution

The fourth proportional to 51,129.58, 70,558.24 and 28,468.08 is: 39,285.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,129.58 : 70,558.24 = 28,468.08 : x
  2. Step 2: Convert to fraction form
    51,129.58/70,558.24 = 28,468.08/x
  3. Step 3: Cross multiply
    51,129.58x = 70,558.24 × 28,468.08
  4. Step 4: Simplify right side
    51,129.58x = 2,008,657,620.98
  5. Step 5: Solve for x
    x = 2,008,657,620.98/51,129.58
  6. Step 6: Final answer
    x = 39,285.63

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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.