Home / 74,118.75-102,283.07-40,126.61

Finding the Fourth Proportional to 74,118.75, 102,283.07 and 40,126.61

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Solution

The fourth proportional to 74,118.75, 102,283.07 and 40,126.61 is: 55,374.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,118.75 : 102,283.07 = 40,126.61 : x
  2. Step 2: Convert to fraction form
    74,118.75/102,283.07 = 40,126.61/x
  3. Step 3: Cross multiply
    74,118.75x = 102,283.07 × 40,126.61
  4. Step 4: Simplify right side
    74,118.75x = 4,104,272,564.94
  5. Step 5: Solve for x
    x = 4,104,272,564.94/74,118.75
  6. Step 6: Final answer
    x = 55,374.28

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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.