Home / 74,741.76-103,138.56-41,203.20

Finding the Fourth Proportional to 74,741.76, 103,138.56 and 41,203.20

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Solution

The fourth proportional to 74,741.76, 103,138.56 and 41,203.20 is: 56,857.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,741.76 : 103,138.56 = 41,203.20 : x
  2. Step 2: Convert to fraction form
    74,741.76/103,138.56 = 41,203.20/x
  3. Step 3: Cross multiply
    74,741.76x = 103,138.56 × 41,203.20
  4. Step 4: Simplify right side
    74,741.76x = 4,249,638,715.39
  5. Step 5: Solve for x
    x = 4,249,638,715.39/74,741.76
  6. Step 6: Final answer
    x = 56,857.62

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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.