Home / 71,223.84-98,284.32-39,391.92

Finding the Fourth Proportional to 71,223.84, 98,284.32 and 39,391.92

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Solution

The fourth proportional to 71,223.84, 98,284.32 and 39,391.92 is: 54,358.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,223.84 : 98,284.32 = 39,391.92 : x
  2. Step 2: Convert to fraction form
    71,223.84/98,284.32 = 39,391.92/x
  3. Step 3: Cross multiply
    71,223.84x = 98,284.32 × 39,391.92
  4. Step 4: Simplify right side
    71,223.84x = 3,871,608,070.69
  5. Step 5: Solve for x
    x = 3,871,608,070.69/71,223.84
  6. Step 6: Final answer
    x = 54,358.32

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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.