Home / 76,775.10-114,902.54-47,211.66

Finding the Fourth Proportional to 76,775.10, 114,902.54 and 47,211.66

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Solution

The fourth proportional to 76,775.10, 114,902.54 and 47,211.66 is: 70,657.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,775.10 : 114,902.54 = 47,211.66 : x
  2. Step 2: Convert to fraction form
    76,775.10/114,902.54 = 47,211.66/x
  3. Step 3: Cross multiply
    76,775.10x = 114,902.54 × 47,211.66
  4. Step 4: Simplify right side
    76,775.10x = 5,424,739,651.62
  5. Step 5: Solve for x
    x = 5,424,739,651.62/76,775.10
  6. Step 6: Final answer
    x = 70,657.54

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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.