Home / 91,978.44-126,930.12-53,764.26

Finding the Fourth Proportional to 91,978.44, 126,930.12 and 53,764.26

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Solution

The fourth proportional to 91,978.44, 126,930.12 and 53,764.26 is: 74,194.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,978.44 : 126,930.12 = 53,764.26 : x
  2. Step 2: Convert to fraction form
    91,978.44/126,930.12 = 53,764.26/x
  3. Step 3: Cross multiply
    91,978.44x = 126,930.12 × 53,764.26
  4. Step 4: Simplify right side
    91,978.44x = 6,824,303,973.51
  5. Step 5: Solve for x
    x = 6,824,303,973.51/91,978.44
  6. Step 6: Final answer
    x = 74,194.60

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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.