Home / 52,801.28-72,865.79-28,928.04

Finding the Fourth Proportional to 52,801.28, 72,865.79 and 28,928.04

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Solution

The fourth proportional to 52,801.28, 72,865.79 and 28,928.04 is: 39,920.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,801.28 : 72,865.79 = 28,928.04 : x
  2. Step 2: Convert to fraction form
    52,801.28/72,865.79 = 28,928.04/x
  3. Step 3: Cross multiply
    52,801.28x = 72,865.79 × 28,928.04
  4. Step 4: Simplify right side
    52,801.28x = 2,107,864,487.75
  5. Step 5: Solve for x
    x = 2,107,864,487.75/52,801.28
  6. Step 6: Final answer
    x = 39,920.71

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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.