Home / 49,829.88-68,768.64-30,457.12

Finding the Fourth Proportional to 49,829.88, 68,768.64 and 30,457.12

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Solution

The fourth proportional to 49,829.88, 68,768.64 and 30,457.12 is: 42,032.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,829.88 : 68,768.64 = 30,457.12 : x
  2. Step 2: Convert to fraction form
    49,829.88/68,768.64 = 30,457.12/x
  3. Step 3: Cross multiply
    49,829.88x = 68,768.64 × 30,457.12
  4. Step 4: Simplify right side
    49,829.88x = 2,094,494,720.72
  5. Step 5: Solve for x
    x = 2,094,494,720.72/49,829.88
  6. Step 6: Final answer
    x = 42,032.91

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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.