Home / 87,972.27-121,395.54-49,733.58

Finding the Fourth Proportional to 87,972.27, 121,395.54 and 49,733.58

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Solution

The fourth proportional to 87,972.27, 121,395.54 and 49,733.58 is: 68,628.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,972.27 : 121,395.54 = 49,733.58 : x
  2. Step 2: Convert to fraction form
    87,972.27/121,395.54 = 49,733.58/x
  3. Step 3: Cross multiply
    87,972.27x = 121,395.54 × 49,733.58
  4. Step 4: Simplify right side
    87,972.27x = 6,037,434,800.23
  5. Step 5: Solve for x
    x = 6,037,434,800.23/87,972.27
  6. Step 6: Final answer
    x = 68,628.84

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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.