Home / 81,932.64-122,937.44-42,468.32

Finding the Fourth Proportional to 81,932.64, 122,937.44 and 42,468.32

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Solution

The fourth proportional to 81,932.64, 122,937.44 and 42,468.32 is: 63,722.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,932.64 : 122,937.44 = 42,468.32 : x
  2. Step 2: Convert to fraction form
    81,932.64/122,937.44 = 42,468.32/x
  3. Step 3: Cross multiply
    81,932.64x = 122,937.44 × 42,468.32
  4. Step 4: Simplify right side
    81,932.64x = 5,220,946,541.90
  5. Step 5: Solve for x
    x = 5,220,946,541.90/81,932.64
  6. Step 6: Final answer
    x = 63,722.43

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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.