Home / 78,976.48-118,466.88-34,580.32

Finding the Fourth Proportional to 78,976.48, 118,466.88 and 34,580.32

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Solution

The fourth proportional to 78,976.48, 118,466.88 and 34,580.32 is: 51,871.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,976.48 : 118,466.88 = 34,580.32 : x
  2. Step 2: Convert to fraction form
    78,976.48/118,466.88 = 34,580.32/x
  3. Step 3: Cross multiply
    78,976.48x = 118,466.88 × 34,580.32
  4. Step 4: Simplify right side
    78,976.48x = 4,096,622,619.80
  5. Step 5: Solve for x
    x = 4,096,622,619.80/78,976.48
  6. Step 6: Final answer
    x = 51,871.43

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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.