Home / 74,182.75-102,372.20-40,648.03

Finding the Fourth Proportional to 74,182.75, 102,372.20 and 40,648.03

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Solution

The fourth proportional to 74,182.75, 102,372.20 and 40,648.03 is: 56,094.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,182.75 : 102,372.20 = 40,648.03 : x
  2. Step 2: Convert to fraction form
    74,182.75/102,372.20 = 40,648.03/x
  3. Step 3: Cross multiply
    74,182.75x = 102,372.20 × 40,648.03
  4. Step 4: Simplify right side
    74,182.75x = 4,161,228,256.77
  5. Step 5: Solve for x
    x = 4,161,228,256.77/74,182.75
  6. Step 6: Final answer
    x = 56,094.28

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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.