Home / 66,416.76-91,653.93-38,120.22

Finding the Fourth Proportional to 66,416.76, 91,653.93 and 38,120.22

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Solution

The fourth proportional to 66,416.76, 91,653.93 and 38,120.22 is: 52,605.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,416.76 : 91,653.93 = 38,120.22 : x
  2. Step 2: Convert to fraction form
    66,416.76/91,653.93 = 38,120.22/x
  3. Step 3: Cross multiply
    66,416.76x = 91,653.93 × 38,120.22
  4. Step 4: Simplify right side
    66,416.76x = 3,493,867,975.46
  5. Step 5: Solve for x
    x = 3,493,867,975.46/66,416.76
  6. Step 6: Final answer
    x = 52,605.22

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Double scale
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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.