Home / 66,587.46-91,888.36-39,716.06

Finding the Fourth Proportional to 66,587.46, 91,888.36 and 39,716.06

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Solution

The fourth proportional to 66,587.46, 91,888.36 and 39,716.06 is: 54,806.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,587.46 : 91,888.36 = 39,716.06 : x
  2. Step 2: Convert to fraction form
    66,587.46/91,888.36 = 39,716.06/x
  3. Step 3: Cross multiply
    66,587.46x = 91,888.36 × 39,716.06
  4. Step 4: Simplify right side
    66,587.46x = 3,649,443,060.33
  5. Step 5: Solve for x
    x = 3,649,443,060.33/66,587.46
  6. Step 6: Final answer
    x = 54,806.76

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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.