Home / 78,955.22-118,451.43-25,647.03

Finding the Fourth Proportional to 78,955.22, 118,451.43 and 25,647.03

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Solution

The fourth proportional to 78,955.22, 118,451.43 and 25,647.03 is: 38,476.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,955.22 : 118,451.43 = 25,647.03 : x
  2. Step 2: Convert to fraction form
    78,955.22/118,451.43 = 25,647.03/x
  3. Step 3: Cross multiply
    78,955.22x = 118,451.43 × 25,647.03
  4. Step 4: Simplify right side
    78,955.22x = 3,037,927,378.75
  5. Step 5: Solve for x
    x = 3,037,927,378.75/78,955.22
  6. Step 6: Final answer
    x = 38,476.59

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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.