Home / 56,942.29-78,579.96-31,450.32

Finding the Fourth Proportional to 56,942.29, 78,579.96 and 31,450.32

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Solution

The fourth proportional to 56,942.29, 78,579.96 and 31,450.32 is: 43,401.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,942.29 : 78,579.96 = 31,450.32 : x
  2. Step 2: Convert to fraction form
    56,942.29/78,579.96 = 31,450.32/x
  3. Step 3: Cross multiply
    56,942.29x = 78,579.96 × 31,450.32
  4. Step 4: Simplify right side
    56,942.29x = 2,471,364,730.34
  5. Step 5: Solve for x
    x = 2,471,364,730.34/56,942.29
  6. Step 6: Final answer
    x = 43,401.22

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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.