Home / 49,122.37-73,621.86-21,009.36

Finding the Fourth Proportional to 49,122.37, 73,621.86 and 21,009.36

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Solution

The fourth proportional to 49,122.37, 73,621.86 and 21,009.36 is: 31,487.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,122.37 : 73,621.86 = 21,009.36 : x
  2. Step 2: Convert to fraction form
    49,122.37/73,621.86 = 21,009.36/x
  3. Step 3: Cross multiply
    49,122.37x = 73,621.86 × 21,009.36
  4. Step 4: Simplify right side
    49,122.37x = 1,546,748,160.61
  5. Step 5: Solve for x
    x = 1,546,748,160.61/49,122.37
  6. Step 6: Final answer
    x = 31,487.65

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.