Home / 75,195.81-112,807.96-30,220.66

Finding the Fourth Proportional to 75,195.81, 112,807.96 and 30,220.66

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Solution

The fourth proportional to 75,195.81, 112,807.96 and 30,220.66 is: 45,336.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,195.81 : 112,807.96 = 30,220.66 : x
  2. Step 2: Convert to fraction form
    75,195.81/112,807.96 = 30,220.66/x
  3. Step 3: Cross multiply
    75,195.81x = 112,807.96 × 30,220.66
  4. Step 4: Simplify right side
    75,195.81x = 3,409,131,069.91
  5. Step 5: Solve for x
    x = 3,409,131,069.91/75,195.81
  6. Step 6: Final answer
    x = 45,336.72

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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.