Home / 67,048.10-100,613.67-38,981.36

Finding the Fourth Proportional to 67,048.10, 100,613.67 and 38,981.36

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Solution

The fourth proportional to 67,048.10, 100,613.67 and 38,981.36 is: 58,496.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,048.10 : 100,613.67 = 38,981.36 : x
  2. Step 2: Convert to fraction form
    67,048.10/100,613.67 = 38,981.36/x
  3. Step 3: Cross multiply
    67,048.10x = 100,613.67 × 38,981.36
  4. Step 4: Simplify right side
    67,048.10x = 3,922,057,188.12
  5. Step 5: Solve for x
    x = 3,922,057,188.12/67,048.10
  6. Step 6: Final answer
    x = 58,496.18

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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.