Home / 39,943.08-55,354.46-39,379.32

Finding the Fourth Proportional to 39,943.08, 55,354.46 and 39,379.32

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Solution

The fourth proportional to 39,943.08, 55,354.46 and 39,379.32 is: 54,573.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,943.08 : 55,354.46 = 39,379.32 : x
  2. Step 2: Convert to fraction form
    39,943.08/55,354.46 = 39,379.32/x
  3. Step 3: Cross multiply
    39,943.08x = 55,354.46 × 39,379.32
  4. Step 4: Simplify right side
    39,943.08x = 2,179,820,796.87
  5. Step 5: Solve for x
    x = 2,179,820,796.87/39,943.08
  6. Step 6: Final answer
    x = 54,573.18

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.