Home / 74,407.66-102,683.33-40,416.48

Finding the Fourth Proportional to 74,407.66, 102,683.33 and 40,416.48

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Solution

The fourth proportional to 74,407.66, 102,683.33 and 40,416.48 is: 55,775.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,407.66 : 102,683.33 = 40,416.48 : x
  2. Step 2: Convert to fraction form
    74,407.66/102,683.33 = 40,416.48/x
  3. Step 3: Cross multiply
    74,407.66x = 102,683.33 × 40,416.48
  4. Step 4: Simplify right side
    74,407.66x = 4,150,098,037.78
  5. Step 5: Solve for x
    x = 4,150,098,037.78/74,407.66
  6. Step 6: Final answer
    x = 55,775.15

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.