Home / 55,022.80-75,930.32-29,872.32

Finding the Fourth Proportional to 55,022.80, 75,930.32 and 29,872.32

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Solution

The fourth proportional to 55,022.80, 75,930.32 and 29,872.32 is: 41,223.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,022.80 : 75,930.32 = 29,872.32 : x
  2. Step 2: Convert to fraction form
    55,022.80/75,930.32 = 29,872.32/x
  3. Step 3: Cross multiply
    55,022.80x = 75,930.32 × 29,872.32
  4. Step 4: Simplify right side
    55,022.80x = 2,268,214,816.74
  5. Step 5: Solve for x
    x = 2,268,214,816.74/55,022.80
  6. Step 6: Final answer
    x = 41,223.18

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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.