Home / 40,700.96-61,060.20-12,620.45

Finding the Fourth Proportional to 40,700.96, 61,060.20 and 12,620.45

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Solution

The fourth proportional to 40,700.96, 61,060.20 and 12,620.45 is: 18,933.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,700.96 : 61,060.20 = 12,620.45 : x
  2. Step 2: Convert to fraction form
    40,700.96/61,060.20 = 12,620.45/x
  3. Step 3: Cross multiply
    40,700.96x = 61,060.20 × 12,620.45
  4. Step 4: Simplify right side
    40,700.96x = 770,606,983.57
  5. Step 5: Solve for x
    x = 770,606,983.57/40,700.96
  6. Step 6: Final answer
    x = 18,933.39

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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.