Home / 66,133.35-91,211.24-43,495.58

Finding the Fourth Proportional to 66,133.35, 91,211.24 and 43,495.58

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Solution

The fourth proportional to 66,133.35, 91,211.24 and 43,495.58 is: 59,989.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,133.35 : 91,211.24 = 43,495.58 : x
  2. Step 2: Convert to fraction form
    66,133.35/91,211.24 = 43,495.58/x
  3. Step 3: Cross multiply
    66,133.35x = 91,211.24 × 43,495.58
  4. Step 4: Simplify right side
    66,133.35x = 3,967,285,112.79
  5. Step 5: Solve for x
    x = 3,967,285,112.79/66,133.35
  6. Step 6: Final answer
    x = 59,989.18

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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.