Home / 75,823.45-113,642.93-53,643.22

Finding the Fourth Proportional to 75,823.45, 113,642.93 and 53,643.22

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Solution

The fourth proportional to 75,823.45, 113,642.93 and 53,643.22 is: 80,399.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,823.45 : 113,642.93 = 53,643.22 : x
  2. Step 2: Convert to fraction form
    75,823.45/113,642.93 = 53,643.22/x
  3. Step 3: Cross multiply
    75,823.45x = 113,642.93 × 53,643.22
  4. Step 4: Simplify right side
    75,823.45x = 6,096,172,545.44
  5. Step 5: Solve for x
    x = 6,096,172,545.44/75,823.45
  6. Step 6: Final answer
    x = 80,399.57

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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.