Home / 66,211.86-91,374.17-35,999.22

Finding the Fourth Proportional to 66,211.86, 91,374.17 and 35,999.22

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Solution

The fourth proportional to 66,211.86, 91,374.17 and 35,999.22 is: 49,679.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,211.86 : 91,374.17 = 35,999.22 : x
  2. Step 2: Convert to fraction form
    66,211.86/91,374.17 = 35,999.22/x
  3. Step 3: Cross multiply
    66,211.86x = 91,374.17 × 35,999.22
  4. Step 4: Simplify right side
    66,211.86x = 3,289,398,938.15
  5. Step 5: Solve for x
    x = 3,289,398,938.15/66,211.86
  6. Step 6: Final answer
    x = 49,679.91

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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.