Home / 74,223.81-102,382.38-48,731.49

Finding the Fourth Proportional to 74,223.81, 102,382.38 and 48,731.49

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Solution

The fourth proportional to 74,223.81, 102,382.38 and 48,731.49 is: 67,218.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,223.81 : 102,382.38 = 48,731.49 : x
  2. Step 2: Convert to fraction form
    74,223.81/102,382.38 = 48,731.49/x
  3. Step 3: Cross multiply
    74,223.81x = 102,382.38 × 48,731.49
  4. Step 4: Simplify right side
    74,223.81x = 4,989,245,927.15
  5. Step 5: Solve for x
    x = 4,989,245,927.15/74,223.81
  6. Step 6: Final answer
    x = 67,218.94

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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.