Home / 74,960.76-103,445.61-40,969.25

Finding the Fourth Proportional to 74,960.76, 103,445.61 and 40,969.25

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Solution

The fourth proportional to 74,960.76, 103,445.61 and 40,969.25 is: 56,537.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,960.76 : 103,445.61 = 40,969.25 : x
  2. Step 2: Convert to fraction form
    74,960.76/103,445.61 = 40,969.25/x
  3. Step 3: Cross multiply
    74,960.76x = 103,445.61 × 40,969.25
  4. Step 4: Simplify right side
    74,960.76x = 4,238,088,798.88
  5. Step 5: Solve for x
    x = 4,238,088,798.88/74,960.76
  6. Step 6: Final answer
    x = 56,537.43

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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.