Home / 74,209.86-102,409.29-40,675.86

Finding the Fourth Proportional to 74,209.86, 102,409.29 and 40,675.86

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Solution

The fourth proportional to 74,209.86, 102,409.29 and 40,675.86 is: 56,132.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,209.86 : 102,409.29 = 40,675.86 : x
  2. Step 2: Convert to fraction form
    74,209.86/102,409.29 = 40,675.86/x
  3. Step 3: Cross multiply
    74,209.86x = 102,409.29 × 40,675.86
  4. Step 4: Simplify right side
    74,209.86x = 4,165,585,942.74
  5. Step 5: Solve for x
    x = 4,165,585,942.74/74,209.86
  6. Step 6: Final answer
    x = 56,132.51

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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.