Home / 81,192.24-111,972.72-50,980.44

Finding the Fourth Proportional to 81,192.24, 111,972.72 and 50,980.44

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Solution

The fourth proportional to 81,192.24, 111,972.72 and 50,980.44 is: 70,307.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,192.24 : 111,972.72 = 50,980.44 : x
  2. Step 2: Convert to fraction form
    81,192.24/111,972.72 = 50,980.44/x
  3. Step 3: Cross multiply
    81,192.24x = 111,972.72 × 50,980.44
  4. Step 4: Simplify right side
    81,192.24x = 5,708,418,533.60
  5. Step 5: Solve for x
    x = 5,708,418,533.60/81,192.24
  6. Step 6: Final answer
    x = 70,307.44

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1.5x scale

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.