Home / 75,039.03-112,558.47-30,080.70

Finding the Fourth Proportional to 75,039.03, 112,558.47 and 30,080.70

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Solution

The fourth proportional to 75,039.03, 112,558.47 and 30,080.70 is: 45,121.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,039.03 : 112,558.47 = 30,080.70 : x
  2. Step 2: Convert to fraction form
    75,039.03/112,558.47 = 30,080.70/x
  3. Step 3: Cross multiply
    75,039.03x = 112,558.47 × 30,080.70
  4. Step 4: Simplify right side
    75,039.03x = 3,385,837,568.53
  5. Step 5: Solve for x
    x = 3,385,837,568.53/75,039.03
  6. Step 6: Final answer
    x = 45,121.02

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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.