Home / 74,400.31-102,673.17-40,409.47

Finding the Fourth Proportional to 74,400.31, 102,673.17 and 40,409.47

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Solution

The fourth proportional to 74,400.31, 102,673.17 and 40,409.47 is: 55,765.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,400.31 : 102,673.17 = 40,409.47 : x
  2. Step 2: Convert to fraction form
    74,400.31/102,673.17 = 40,409.47/x
  3. Step 3: Cross multiply
    74,400.31x = 102,673.17 × 40,409.47
  4. Step 4: Simplify right side
    74,400.31x = 4,148,967,933.72
  5. Step 5: Solve for x
    x = 4,148,967,933.72/74,400.31
  6. Step 6: Final answer
    x = 55,765.46

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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.