Home / 78,955.26-118,451.48-25,647.07

Finding the Fourth Proportional to 78,955.26, 118,451.48 and 25,647.07

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Solution

The fourth proportional to 78,955.26, 118,451.48 and 25,647.07 is: 38,476.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,955.26 : 118,451.48 = 25,647.07 : x
  2. Step 2: Convert to fraction form
    78,955.26/118,451.48 = 25,647.07/x
  3. Step 3: Cross multiply
    78,955.26x = 118,451.48 × 25,647.07
  4. Step 4: Simplify right side
    78,955.26x = 3,037,933,270.93
  5. Step 5: Solve for x
    x = 3,037,933,270.93/78,955.26
  6. Step 6: Final answer
    x = 38,476.64

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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.