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Finding the Fourth Proportional to 75,003.29, 112,505.04 and 30,630.04

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Solution

The fourth proportional to 75,003.29, 112,505.04 and 30,630.04 is: 45,945.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,003.29 : 112,505.04 = 30,630.04 : x
  2. Step 2: Convert to fraction form
    75,003.29/112,505.04 = 30,630.04/x
  3. Step 3: Cross multiply
    75,003.29x = 112,505.04 × 30,630.04
  4. Step 4: Simplify right side
    75,003.29x = 3,446,033,798.83
  5. Step 5: Solve for x
    x = 3,446,033,798.83/75,003.29
  6. Step 6: Final answer
    x = 45,945.10

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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.