Home / 55,934.70-77,189.09-30,784.20

Finding the Fourth Proportional to 55,934.70, 77,189.09 and 30,784.20

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Solution

The fourth proportional to 55,934.70, 77,189.09 and 30,784.20 is: 42,481.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,934.70 : 77,189.09 = 30,784.20 : x
  2. Step 2: Convert to fraction form
    55,934.70/77,189.09 = 30,784.20/x
  3. Step 3: Cross multiply
    55,934.70x = 77,189.09 × 30,784.20
  4. Step 4: Simplify right side
    55,934.70x = 2,376,204,230.46
  5. Step 5: Solve for x
    x = 2,376,204,230.46/55,934.70
  6. Step 6: Final answer
    x = 42,481.76

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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.