Home / 74,442.33-102,730.47-40,451.18

Finding the Fourth Proportional to 74,442.33, 102,730.47 and 40,451.18

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Solution

The fourth proportional to 74,442.33, 102,730.47 and 40,451.18 is: 55,822.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,442.33 : 102,730.47 = 40,451.18 : x
  2. Step 2: Convert to fraction form
    74,442.33/102,730.47 = 40,451.18/x
  3. Step 3: Cross multiply
    74,442.33x = 102,730.47 × 40,451.18
  4. Step 4: Simplify right side
    74,442.33x = 4,155,568,219.80
  5. Step 5: Solve for x
    x = 4,155,568,219.80/74,442.33
  6. Step 6: Final answer
    x = 55,822.65

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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.