Home / 45,778.72-68,607.60-20,822.08

Finding the Fourth Proportional to 45,778.72, 68,607.60 and 20,822.08

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Solution

The fourth proportional to 45,778.72, 68,607.60 and 20,822.08 is: 31,205.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,778.72 : 68,607.60 = 20,822.08 : x
  2. Step 2: Convert to fraction form
    45,778.72/68,607.60 = 20,822.08/x
  3. Step 3: Cross multiply
    45,778.72x = 68,607.60 × 20,822.08
  4. Step 4: Simplify right side
    45,778.72x = 1,428,552,935.81
  5. Step 5: Solve for x
    x = 1,428,552,935.81/45,778.72
  6. Step 6: Final answer
    x = 31,205.61

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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.