Home / 52,786.92-72,846-28,915.08

Finding the Fourth Proportional to 52,786.92, 72,846 and 28,915.08

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Solution

The fourth proportional to 52,786.92, 72,846 and 28,915.08 is: 39,902.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,786.92 : 72,846 = 28,915.08 : x
  2. Step 2: Convert to fraction form
    52,786.92/72,846 = 28,915.08/x
  3. Step 3: Cross multiply
    52,786.92x = 72,846 × 28,915.08
  4. Step 4: Simplify right side
    52,786.92x = 2,106,347,917.68
  5. Step 5: Solve for x
    x = 2,106,347,917.68/52,786.92
  6. Step 6: Final answer
    x = 39,902.84

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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.