Home / 40,509.45-60,744.74-20,777.85

Finding the Fourth Proportional to 40,509.45, 60,744.74 and 20,777.85

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Solution

The fourth proportional to 40,509.45, 60,744.74 and 20,777.85 is: 31,156.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,509.45 : 60,744.74 = 20,777.85 : x
  2. Step 2: Convert to fraction form
    40,509.45/60,744.74 = 20,777.85/x
  3. Step 3: Cross multiply
    40,509.45x = 60,744.74 × 20,777.85
  4. Step 4: Simplify right side
    40,509.45x = 1,262,144,992.12
  5. Step 5: Solve for x
    x = 1,262,144,992.12/40,509.45
  6. Step 6: Final answer
    x = 31,156.80

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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.