Home / 76,566.47-114,764.60-57,785.60

Finding the Fourth Proportional to 76,566.47, 114,764.60 and 57,785.60

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Solution

The fourth proportional to 76,566.47, 114,764.60 and 57,785.60 is: 86,614.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,566.47 : 114,764.60 = 57,785.60 : x
  2. Step 2: Convert to fraction form
    76,566.47/114,764.60 = 57,785.60/x
  3. Step 3: Cross multiply
    76,566.47x = 114,764.60 × 57,785.60
  4. Step 4: Simplify right side
    76,566.47x = 6,631,741,376.09
  5. Step 5: Solve for x
    x = 6,631,741,376.09/76,566.47
  6. Step 6: Final answer
    x = 86,614.18

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.