Home / 56,880.82-78,497.96-31,730.32

Finding the Fourth Proportional to 56,880.82, 78,497.96 and 31,730.32

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Solution

The fourth proportional to 56,880.82, 78,497.96 and 31,730.32 is: 43,789.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,880.82 : 78,497.96 = 31,730.32 : x
  2. Step 2: Convert to fraction form
    56,880.82/78,497.96 = 31,730.32/x
  3. Step 3: Cross multiply
    56,880.82x = 78,497.96 × 31,730.32
  4. Step 4: Simplify right side
    56,880.82x = 2,490,765,390.15
  5. Step 5: Solve for x
    x = 2,490,765,390.15/56,880.82
  6. Step 6: Final answer
    x = 43,789.20

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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.