Home / 48,387.87-72,553.54-18,771.09

Finding the Fourth Proportional to 48,387.87, 72,553.54 and 18,771.09

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Solution

The fourth proportional to 48,387.87, 72,553.54 and 18,771.09 is: 28,145.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,387.87 : 72,553.54 = 18,771.09 : x
  2. Step 2: Convert to fraction form
    48,387.87/72,553.54 = 18,771.09/x
  3. Step 3: Cross multiply
    48,387.87x = 72,553.54 × 18,771.09
  4. Step 4: Simplify right side
    48,387.87x = 1,361,909,029.16
  5. Step 5: Solve for x
    x = 1,361,909,029.16/48,387.87
  6. Step 6: Final answer
    x = 28,145.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.