Home / 66,105.79-91,225.44-35,890.49

Finding the Fourth Proportional to 66,105.79, 91,225.44 and 35,890.49

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Solution

The fourth proportional to 66,105.79, 91,225.44 and 35,890.49 is: 49,528.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,105.79 : 91,225.44 = 35,890.49 : x
  2. Step 2: Convert to fraction form
    66,105.79/91,225.44 = 35,890.49/x
  3. Step 3: Cross multiply
    66,105.79x = 91,225.44 × 35,890.49
  4. Step 4: Simplify right side
    66,105.79x = 3,274,125,970.13
  5. Step 5: Solve for x
    x = 3,274,125,970.13/66,105.79
  6. Step 6: Final answer
    x = 49,528.58

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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.