Home / 84,699.18-126,879.36-50,946.56

Finding the Fourth Proportional to 84,699.18, 126,879.36 and 50,946.56

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Solution

The fourth proportional to 84,699.18, 126,879.36 and 50,946.56 is: 76,317.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,699.18 : 126,879.36 = 50,946.56 : x
  2. Step 2: Convert to fraction form
    84,699.18/126,879.36 = 50,946.56/x
  3. Step 3: Cross multiply
    84,699.18x = 126,879.36 × 50,946.56
  4. Step 4: Simplify right side
    84,699.18x = 6,464,066,292.60
  5. Step 5: Solve for x
    x = 6,464,066,292.60/84,699.18
  6. Step 6: Final answer
    x = 76,317.93

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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.