Home / 76,317.18-105,317.15-41,862.71

Finding the Fourth Proportional to 76,317.18, 105,317.15 and 41,862.71

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Solution

The fourth proportional to 76,317.18, 105,317.15 and 41,862.71 is: 57,770.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,317.18 : 105,317.15 = 41,862.71 : x
  2. Step 2: Convert to fraction form
    76,317.18/105,317.15 = 41,862.71/x
  3. Step 3: Cross multiply
    76,317.18x = 105,317.15 × 41,862.71
  4. Step 4: Simplify right side
    76,317.18x = 4,408,860,729.56
  5. Step 5: Solve for x
    x = 4,408,860,729.56/76,317.18
  6. Step 6: Final answer
    x = 57,770.22

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.