Home / 75,766.86-113,066.42-66,552.30

Finding the Fourth Proportional to 75,766.86, 113,066.42 and 66,552.30

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Solution

The fourth proportional to 75,766.86, 113,066.42 and 66,552.30 is: 99,315.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,766.86 : 113,066.42 = 66,552.30 : x
  2. Step 2: Convert to fraction form
    75,766.86/113,066.42 = 66,552.30/x
  3. Step 3: Cross multiply
    75,766.86x = 113,066.42 × 66,552.30
  4. Step 4: Simplify right side
    75,766.86x = 7,524,829,971.00
  5. Step 5: Solve for x
    x = 7,524,829,971.00/75,766.86
  6. Step 6: Final answer
    x = 99,315.58

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.