Home / 75,849.80-113,777.55-19,688.45

Finding the Fourth Proportional to 75,849.80, 113,777.55 and 19,688.45

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Solution

The fourth proportional to 75,849.80, 113,777.55 and 19,688.45 is: 29,533.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,849.80 : 113,777.55 = 19,688.45 : x
  2. Step 2: Convert to fraction form
    75,849.80/113,777.55 = 19,688.45/x
  3. Step 3: Cross multiply
    75,849.80x = 113,777.55 × 19,688.45
  4. Step 4: Simplify right side
    75,849.80x = 2,240,103,035.41
  5. Step 5: Solve for x
    x = 2,240,103,035.41/75,849.80
  6. Step 6: Final answer
    x = 29,533.41

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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.