Home / 40,140.30-55,400.46-23,141.54

Finding the Fourth Proportional to 40,140.30, 55,400.46 and 23,141.54

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Solution

The fourth proportional to 40,140.30, 55,400.46 and 23,141.54 is: 31,939.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,140.30 : 55,400.46 = 23,141.54 : x
  2. Step 2: Convert to fraction form
    40,140.30/55,400.46 = 23,141.54/x
  3. Step 3: Cross multiply
    40,140.30x = 55,400.46 × 23,141.54
  4. Step 4: Simplify right side
    40,140.30x = 1,282,051,961.11
  5. Step 5: Solve for x
    x = 1,282,051,961.11/40,140.30
  6. Step 6: Final answer
    x = 31,939.27

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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.