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Finding the Fourth Proportional to 47,992.77, 71,990.24 and 38,138.99

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Solution

The fourth proportional to 47,992.77, 71,990.24 and 38,138.99 is: 57,209.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,992.77 : 71,990.24 = 38,138.99 : x
  2. Step 2: Convert to fraction form
    47,992.77/71,990.24 = 38,138.99/x
  3. Step 3: Cross multiply
    47,992.77x = 71,990.24 × 38,138.99
  4. Step 4: Simplify right side
    47,992.77x = 2,745,634,492.81
  5. Step 5: Solve for x
    x = 2,745,634,492.81/47,992.77
  6. Step 6: Final answer
    x = 57,209.34

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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.