Home / 78,531.56-108,467.94-57,277.16

Finding the Fourth Proportional to 78,531.56, 108,467.94 and 57,277.16

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Solution

The fourth proportional to 78,531.56, 108,467.94 and 57,277.16 is: 79,111.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,531.56 : 108,467.94 = 57,277.16 : x
  2. Step 2: Convert to fraction form
    78,531.56/108,467.94 = 57,277.16/x
  3. Step 3: Cross multiply
    78,531.56x = 108,467.94 × 57,277.16
  4. Step 4: Simplify right side
    78,531.56x = 6,212,735,554.25
  5. Step 5: Solve for x
    x = 6,212,735,554.25/78,531.56
  6. Step 6: Final answer
    x = 79,111.32

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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.