Home / 66,917.56-92,342.64-38,621.56

Finding the Fourth Proportional to 66,917.56, 92,342.64 and 38,621.56

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Solution

The fourth proportional to 66,917.56, 92,342.64 and 38,621.56 is: 53,295.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,917.56 : 92,342.64 = 38,621.56 : x
  2. Step 2: Convert to fraction form
    66,917.56/92,342.64 = 38,621.56/x
  3. Step 3: Cross multiply
    66,917.56x = 92,342.64 × 38,621.56
  4. Step 4: Simplify right side
    66,917.56x = 3,566,416,811.32
  5. Step 5: Solve for x
    x = 3,566,416,811.32/66,917.56
  6. Step 6: Final answer
    x = 53,295.68

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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.