Home / 74,152.47-102,329.89-40,160.19

Finding the Fourth Proportional to 74,152.47, 102,329.89 and 40,160.19

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Solution

The fourth proportional to 74,152.47, 102,329.89 and 40,160.19 is: 55,420.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,152.47 : 102,329.89 = 40,160.19 : x
  2. Step 2: Convert to fraction form
    74,152.47/102,329.89 = 40,160.19/x
  3. Step 3: Cross multiply
    74,152.47x = 102,329.89 × 40,160.19
  4. Step 4: Simplify right side
    74,152.47x = 4,109,587,825.08
  5. Step 5: Solve for x
    x = 4,109,587,825.08/74,152.47
  6. Step 6: Final answer
    x = 55,420.78

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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.