Home / 74,617.56-102,969.64-40,625.44

Finding the Fourth Proportional to 74,617.56, 102,969.64 and 40,625.44

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Solution

The fourth proportional to 74,617.56, 102,969.64 and 40,625.44 is: 56,061.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,617.56 : 102,969.64 = 40,625.44 : x
  2. Step 2: Convert to fraction form
    74,617.56/102,969.64 = 40,625.44/x
  3. Step 3: Cross multiply
    74,617.56x = 102,969.64 × 40,625.44
  4. Step 4: Simplify right side
    74,617.56x = 4,183,186,931.64
  5. Step 5: Solve for x
    x = 4,183,186,931.64/74,617.56
  6. Step 6: Final answer
    x = 56,061.70

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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.