Home / 75,780.30-113,670.45-33,660.30

Finding the Fourth Proportional to 75,780.30, 113,670.45 and 33,660.30

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Solution

The fourth proportional to 75,780.30, 113,670.45 and 33,660.30 is: 50,490.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,780.30 : 113,670.45 = 33,660.30 : x
  2. Step 2: Convert to fraction form
    75,780.30/113,670.45 = 33,660.30/x
  3. Step 3: Cross multiply
    75,780.30x = 113,670.45 × 33,660.30
  4. Step 4: Simplify right side
    75,780.30x = 3,826,181,448.14
  5. Step 5: Solve for x
    x = 3,826,181,448.14/75,780.30
  6. Step 6: Final answer
    x = 50,490.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.