Home / 52,261.62-72,121.26-28,388.70

Finding the Fourth Proportional to 52,261.62, 72,121.26 and 28,388.70

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Solution

The fourth proportional to 52,261.62, 72,121.26 and 28,388.70 is: 39,176.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,261.62 : 72,121.26 = 28,388.70 : x
  2. Step 2: Convert to fraction form
    52,261.62/72,121.26 = 28,388.70/x
  3. Step 3: Cross multiply
    52,261.62x = 72,121.26 × 28,388.70
  4. Step 4: Simplify right side
    52,261.62x = 2,047,428,813.76
  5. Step 5: Solve for x
    x = 2,047,428,813.76/52,261.62
  6. Step 6: Final answer
    x = 39,176.53

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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.