Home / 55,644.12-76,786.36-30,493.08

Finding the Fourth Proportional to 55,644.12, 76,786.36 and 30,493.08

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Solution

The fourth proportional to 55,644.12, 76,786.36 and 30,493.08 is: 42,079.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,644.12 : 76,786.36 = 30,493.08 : x
  2. Step 2: Convert to fraction form
    55,644.12/76,786.36 = 30,493.08/x
  3. Step 3: Cross multiply
    55,644.12x = 76,786.36 × 30,493.08
  4. Step 4: Simplify right side
    55,644.12x = 2,341,452,618.39
  5. Step 5: Solve for x
    x = 2,341,452,618.39/55,644.12
  6. Step 6: Final answer
    x = 42,079.07

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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.