Home / 55,036.80-75,949.38-31,169.34

Finding the Fourth Proportional to 55,036.80, 75,949.38 and 31,169.34

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Solution

The fourth proportional to 55,036.80, 75,949.38 and 31,169.34 is: 43,012.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,036.80 : 75,949.38 = 31,169.34 : x
  2. Step 2: Convert to fraction form
    55,036.80/75,949.38 = 31,169.34/x
  3. Step 3: Cross multiply
    55,036.80x = 75,949.38 × 31,169.34
  4. Step 4: Simplify right side
    55,036.80x = 2,367,292,048.01
  5. Step 5: Solve for x
    x = 2,367,292,048.01/55,036.80
  6. Step 6: Final answer
    x = 43,012.89

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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.