Home / 75,003.90-112,518.81-30,654.78

Finding the Fourth Proportional to 75,003.90, 112,518.81 and 30,654.78

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Solution

The fourth proportional to 75,003.90, 112,518.81 and 30,654.78 is: 45,987.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,003.90 : 112,518.81 = 30,654.78 : x
  2. Step 2: Convert to fraction form
    75,003.90/112,518.81 = 30,654.78/x
  3. Step 3: Cross multiply
    75,003.90x = 112,518.81 × 30,654.78
  4. Step 4: Simplify right side
    75,003.90x = 3,449,239,366.41
  5. Step 5: Solve for x
    x = 3,449,239,366.41/75,003.90
  6. Step 6: Final answer
    x = 45,987.47

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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.