Home / 81,937.64-122,908.86-32,015.72

Finding the Fourth Proportional to 81,937.64, 122,908.86 and 32,015.72

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Solution

The fourth proportional to 81,937.64, 122,908.86 and 32,015.72 is: 48,024.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,937.64 : 122,908.86 = 32,015.72 : x
  2. Step 2: Convert to fraction form
    81,937.64/122,908.86 = 32,015.72/x
  3. Step 3: Cross multiply
    81,937.64x = 122,908.86 × 32,015.72
  4. Step 4: Simplify right side
    81,937.64x = 3,935,015,647.28
  5. Step 5: Solve for x
    x = 3,935,015,647.28/81,937.64
  6. Step 6: Final answer
    x = 48,024.52

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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.