Home / 92,930.28-139,317.04-40,300.12

Finding the Fourth Proportional to 92,930.28, 139,317.04 and 40,300.12

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Solution

The fourth proportional to 92,930.28, 139,317.04 and 40,300.12 is: 60,416.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,930.28 : 139,317.04 = 40,300.12 : x
  2. Step 2: Convert to fraction form
    92,930.28/139,317.04 = 40,300.12/x
  3. Step 3: Cross multiply
    92,930.28x = 139,317.04 × 40,300.12
  4. Step 4: Simplify right side
    92,930.28x = 5,614,493,430.04
  5. Step 5: Solve for x
    x = 5,614,493,430.04/92,930.28
  6. Step 6: Final answer
    x = 60,416.19

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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.