Home / 77,487.67-116,231.50-30,740.54

Finding the Fourth Proportional to 77,487.67, 116,231.50 and 30,740.54

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Solution

The fourth proportional to 77,487.67, 116,231.50 and 30,740.54 is: 46,110.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,487.67 : 116,231.50 = 30,740.54 : x
  2. Step 2: Convert to fraction form
    77,487.67/116,231.50 = 30,740.54/x
  3. Step 3: Cross multiply
    77,487.67x = 116,231.50 × 30,740.54
  4. Step 4: Simplify right side
    77,487.67x = 3,573,019,075.01
  5. Step 5: Solve for x
    x = 3,573,019,075.01/77,487.67
  6. Step 6: Final answer
    x = 46,110.81

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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.