Home / 74,708.28-103,057.38-47,821.86

Finding the Fourth Proportional to 74,708.28, 103,057.38 and 47,821.86

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Solution

The fourth proportional to 74,708.28, 103,057.38 and 47,821.86 is: 65,968.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,708.28 : 103,057.38 = 47,821.86 : x
  2. Step 2: Convert to fraction form
    74,708.28/103,057.38 = 47,821.86/x
  3. Step 3: Cross multiply
    74,708.28x = 103,057.38 × 47,821.86
  4. Step 4: Simplify right side
    74,708.28x = 4,928,395,598.33
  5. Step 5: Solve for x
    x = 4,928,395,598.33/74,708.28
  6. Step 6: Final answer
    x = 65,968.53

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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.