Home / 87,972.60-121,339.98-53,982.84

Finding the Fourth Proportional to 87,972.60, 121,339.98 and 53,982.84

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Solution

The fourth proportional to 87,972.60, 121,339.98 and 53,982.84 is: 74,458.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,972.60 : 121,339.98 = 53,982.84 : x
  2. Step 2: Convert to fraction form
    87,972.60/121,339.98 = 53,982.84/x
  3. Step 3: Cross multiply
    87,972.60x = 121,339.98 × 53,982.84
  4. Step 4: Simplify right side
    87,972.60x = 6,550,276,725.94
  5. Step 5: Solve for x
    x = 6,550,276,725.94/87,972.60
  6. Step 6: Final answer
    x = 74,458.15

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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.