Home / 66,029.31-91,172.79-60,991.65

Finding the Fourth Proportional to 66,029.31, 91,172.79 and 60,991.65

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Solution

The fourth proportional to 66,029.31, 91,172.79 and 60,991.65 is: 84,216.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,029.31 : 91,172.79 = 60,991.65 : x
  2. Step 2: Convert to fraction form
    66,029.31/91,172.79 = 60,991.65/x
  3. Step 3: Cross multiply
    66,029.31x = 91,172.79 × 60,991.65
  4. Step 4: Simplify right side
    66,029.31x = 5,560,778,897.20
  5. Step 5: Solve for x
    x = 5,560,778,897.20/66,029.31
  6. Step 6: Final answer
    x = 84,216.83

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1.5x scale

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.