Home / 43,110.55-64,611-19,392.74

Finding the Fourth Proportional to 43,110.55, 64,611 and 19,392.74

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Solution

The fourth proportional to 43,110.55, 64,611 and 19,392.74 is: 29,064.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,110.55 : 64,611 = 19,392.74 : x
  2. Step 2: Convert to fraction form
    43,110.55/64,611 = 19,392.74/x
  3. Step 3: Cross multiply
    43,110.55x = 64,611 × 19,392.74
  4. Step 4: Simplify right side
    43,110.55x = 1,252,984,324.14
  5. Step 5: Solve for x
    x = 1,252,984,324.14/43,110.55
  6. Step 6: Final answer
    x = 29,064.45

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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.