Home / 85,640.14-118,186.59-47,914.66

Finding the Fourth Proportional to 85,640.14, 118,186.59 and 47,914.66

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Solution

The fourth proportional to 85,640.14, 118,186.59 and 47,914.66 is: 66,124.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,640.14 : 118,186.59 = 47,914.66 : x
  2. Step 2: Convert to fraction form
    85,640.14/118,186.59 = 47,914.66/x
  3. Step 3: Cross multiply
    85,640.14x = 118,186.59 × 47,914.66
  4. Step 4: Simplify right side
    85,640.14x = 5,662,870,276.41
  5. Step 5: Solve for x
    x = 5,662,870,276.41/85,640.14
  6. Step 6: Final answer
    x = 66,124.02

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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.