Home / 50,720.99-69,992.30-28,059.62

Finding the Fourth Proportional to 50,720.99, 69,992.30 and 28,059.62

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Solution

The fourth proportional to 50,720.99, 69,992.30 and 28,059.62 is: 38,720.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,720.99 : 69,992.30 = 28,059.62 : x
  2. Step 2: Convert to fraction form
    50,720.99/69,992.30 = 28,059.62/x
  3. Step 3: Cross multiply
    50,720.99x = 69,992.30 × 28,059.62
  4. Step 4: Simplify right side
    50,720.99x = 1,963,957,061.11
  5. Step 5: Solve for x
    x = 1,963,957,061.11/50,720.99
  6. Step 6: Final answer
    x = 38,720.80

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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.