Home / 74,679.03-103,056.49-40,687.41

Finding the Fourth Proportional to 74,679.03, 103,056.49 and 40,687.41

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Solution

The fourth proportional to 74,679.03, 103,056.49 and 40,687.41 is: 56,148.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,679.03 : 103,056.49 = 40,687.41 : x
  2. Step 2: Convert to fraction form
    74,679.03/103,056.49 = 40,687.41/x
  3. Step 3: Cross multiply
    74,679.03x = 103,056.49 × 40,687.41
  4. Step 4: Simplify right side
    74,679.03x = 4,193,101,458.35
  5. Step 5: Solve for x
    x = 4,193,101,458.35/74,679.03
  6. Step 6: Final answer
    x = 56,148.31

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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.