Home / 56,751.44-78,316.24-31,257.32

Finding the Fourth Proportional to 56,751.44, 78,316.24 and 31,257.32

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Solution

The fourth proportional to 56,751.44, 78,316.24 and 31,257.32 is: 43,134.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,751.44 : 78,316.24 = 31,257.32 : x
  2. Step 2: Convert to fraction form
    56,751.44/78,316.24 = 31,257.32/x
  3. Step 3: Cross multiply
    56,751.44x = 78,316.24 × 31,257.32
  4. Step 4: Simplify right side
    56,751.44x = 2,447,955,774.88
  5. Step 5: Solve for x
    x = 2,447,955,774.88/56,751.44
  6. Step 6: Final answer
    x = 43,134.69

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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.