Home / 47,720.74-65,792.64-30,694.54

Finding the Fourth Proportional to 47,720.74, 65,792.64 and 30,694.54

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Solution

The fourth proportional to 47,720.74, 65,792.64 and 30,694.54 is: 42,318.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,720.74 : 65,792.64 = 30,694.54 : x
  2. Step 2: Convert to fraction form
    47,720.74/65,792.64 = 30,694.54/x
  3. Step 3: Cross multiply
    47,720.74x = 65,792.64 × 30,694.54
  4. Step 4: Simplify right side
    47,720.74x = 2,019,474,820.19
  5. Step 5: Solve for x
    x = 2,019,474,820.19/47,720.74
  6. Step 6: Final answer
    x = 42,318.60

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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.