Home / 66,070.58-91,178.07-35,856.16

Finding the Fourth Proportional to 66,070.58, 91,178.07 and 35,856.16

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Solution

The fourth proportional to 66,070.58, 91,178.07 and 35,856.16 is: 49,481.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,070.58 : 91,178.07 = 35,856.16 : x
  2. Step 2: Convert to fraction form
    66,070.58/91,178.07 = 35,856.16/x
  3. Step 3: Cross multiply
    66,070.58x = 91,178.07 × 35,856.16
  4. Step 4: Simplify right side
    66,070.58x = 3,269,295,445.92
  5. Step 5: Solve for x
    x = 3,269,295,445.92/66,070.58
  6. Step 6: Final answer
    x = 49,481.86

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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.