Home / 57,071.44-78,760.90-31,577.36

Finding the Fourth Proportional to 57,071.44, 78,760.90 and 31,577.36

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Solution

The fourth proportional to 57,071.44, 78,760.90 and 31,577.36 is: 43,578.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,071.44 : 78,760.90 = 31,577.36 : x
  2. Step 2: Convert to fraction form
    57,071.44/78,760.90 = 31,577.36/x
  3. Step 3: Cross multiply
    57,071.44x = 78,760.90 × 31,577.36
  4. Step 4: Simplify right side
    57,071.44x = 2,487,061,293.22
  5. Step 5: Solve for x
    x = 2,487,061,293.22/57,071.44
  6. Step 6: Final answer
    x = 43,578.04

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1.5x scale

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.