Home / 74,151.90-102,329.93-40,160.79

Finding the Fourth Proportional to 74,151.90, 102,329.93 and 40,160.79

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Solution

The fourth proportional to 74,151.90, 102,329.93 and 40,160.79 is: 55,422.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,151.90 : 102,329.93 = 40,160.79 : x
  2. Step 2: Convert to fraction form
    74,151.90/102,329.93 = 40,160.79/x
  3. Step 3: Cross multiply
    74,151.90x = 102,329.93 × 40,160.79
  4. Step 4: Simplify right side
    74,151.90x = 4,109,650,829.44
  5. Step 5: Solve for x
    x = 4,109,650,829.44/74,151.90
  6. Step 6: Final answer
    x = 55,422.06

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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.