Home / 74,809.86-103,144.23-47,908.14

Finding the Fourth Proportional to 74,809.86, 103,144.23 and 47,908.14

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Solution

The fourth proportional to 74,809.86, 103,144.23 and 47,908.14 is: 66,053.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,809.86 : 103,144.23 = 47,908.14 : x
  2. Step 2: Convert to fraction form
    74,809.86/103,144.23 = 47,908.14/x
  3. Step 3: Cross multiply
    74,809.86x = 103,144.23 × 47,908.14
  4. Step 4: Simplify right side
    74,809.86x = 4,941,448,211.03
  5. Step 5: Solve for x
    x = 4,941,448,211.03/74,809.86
  6. Step 6: Final answer
    x = 66,053.43

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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.