Home / 77,965.18-116,940.48-21,810.34

Finding the Fourth Proportional to 77,965.18, 116,940.48 and 21,810.34

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Solution

The fourth proportional to 77,965.18, 116,940.48 and 21,810.34 is: 32,713.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,965.18 : 116,940.48 = 21,810.34 : x
  2. Step 2: Convert to fraction form
    77,965.18/116,940.48 = 21,810.34/x
  3. Step 3: Cross multiply
    77,965.18x = 116,940.48 × 21,810.34
  4. Step 4: Simplify right side
    77,965.18x = 2,550,511,628.56
  5. Step 5: Solve for x
    x = 2,550,511,628.56/77,965.18
  6. Step 6: Final answer
    x = 32,713.47

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1.5x scale

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.