Home / 74,375.64-102,638.29-40,841.64

Finding the Fourth Proportional to 74,375.64, 102,638.29 and 40,841.64

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Solution

The fourth proportional to 74,375.64, 102,638.29 and 40,841.64 is: 56,361.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,375.64 : 102,638.29 = 40,841.64 : x
  2. Step 2: Convert to fraction form
    74,375.64/102,638.29 = 40,841.64/x
  3. Step 3: Cross multiply
    74,375.64x = 102,638.29 × 40,841.64
  4. Step 4: Simplify right side
    74,375.64x = 4,191,916,090.40
  5. Step 5: Solve for x
    x = 4,191,916,090.40/74,375.64
  6. Step 6: Final answer
    x = 56,361.41

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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.