Home / 81,289.72-112,197.36-49,468.84

Finding the Fourth Proportional to 81,289.72, 112,197.36 and 49,468.84

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Solution

The fourth proportional to 81,289.72, 112,197.36 and 49,468.84 is: 68,277.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,289.72 : 112,197.36 = 49,468.84 : x
  2. Step 2: Convert to fraction form
    81,289.72/112,197.36 = 49,468.84/x
  3. Step 3: Cross multiply
    81,289.72x = 112,197.36 × 49,468.84
  4. Step 4: Simplify right side
    81,289.72x = 5,550,273,250.26
  5. Step 5: Solve for x
    x = 5,550,273,250.26/81,289.72
  6. Step 6: Final answer
    x = 68,277.68

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1.5x scale

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.