Home / 52,811.90-72,882.25-28,938.57

Finding the Fourth Proportional to 52,811.90, 72,882.25 and 28,938.57

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Solution

The fourth proportional to 52,811.90, 72,882.25 and 28,938.57 is: 39,936.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,811.90 : 72,882.25 = 28,938.57 : x
  2. Step 2: Convert to fraction form
    52,811.90/72,882.25 = 28,938.57/x
  3. Step 3: Cross multiply
    52,811.90x = 72,882.25 × 28,938.57
  4. Step 4: Simplify right side
    52,811.90x = 2,109,107,747.73
  5. Step 5: Solve for x
    x = 2,109,107,747.73/52,811.90
  6. Step 6: Final answer
    x = 39,936.22

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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.