Home / 57,071.93-78,761.58-31,577.88

Finding the Fourth Proportional to 57,071.93, 78,761.58 and 31,577.88

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Solution

The fourth proportional to 57,071.93, 78,761.58 and 31,577.88 is: 43,578.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,071.93 : 78,761.58 = 31,577.88 : x
  2. Step 2: Convert to fraction form
    57,071.93/78,761.58 = 31,577.88/x
  3. Step 3: Cross multiply
    57,071.93x = 78,761.58 × 31,577.88
  4. Step 4: Simplify right side
    57,071.93x = 2,487,124,076.41
  5. Step 5: Solve for x
    x = 2,487,124,076.41/57,071.93
  6. Step 6: Final answer
    x = 43,578.77

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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.