Home / 96,689.46-145,033.75-30,129.64

Finding the Fourth Proportional to 96,689.46, 145,033.75 and 30,129.64

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Solution

The fourth proportional to 96,689.46, 145,033.75 and 30,129.64 is: 45,194.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,689.46 : 145,033.75 = 30,129.64 : x
  2. Step 2: Convert to fraction form
    96,689.46/145,033.75 = 30,129.64/x
  3. Step 3: Cross multiply
    96,689.46x = 145,033.75 × 30,129.64
  4. Step 4: Simplify right side
    96,689.46x = 4,369,814,350.43
  5. Step 5: Solve for x
    x = 4,369,814,350.43/96,689.46
  6. Step 6: Final answer
    x = 45,194.32

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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.