Home / 55,062.12-75,990.80-31,189.80

Finding the Fourth Proportional to 55,062.12, 75,990.80 and 31,189.80

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Solution

The fourth proportional to 55,062.12, 75,990.80 and 31,189.80 is: 43,044.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,062.12 : 75,990.80 = 31,189.80 : x
  2. Step 2: Convert to fraction form
    55,062.12/75,990.80 = 31,189.80/x
  3. Step 3: Cross multiply
    55,062.12x = 75,990.80 × 31,189.80
  4. Step 4: Simplify right side
    55,062.12x = 2,370,137,853.84
  5. Step 5: Solve for x
    x = 2,370,137,853.84/55,062.12
  6. Step 6: Final answer
    x = 43,044.80

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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.