Home / 56,806.87-78,394.03-31,314.23

Finding the Fourth Proportional to 56,806.87, 78,394.03 and 31,314.23

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Solution

The fourth proportional to 56,806.87, 78,394.03 and 31,314.23 is: 43,213.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,806.87 : 78,394.03 = 31,314.23 : x
  2. Step 2: Convert to fraction form
    56,806.87/78,394.03 = 31,314.23/x
  3. Step 3: Cross multiply
    56,806.87x = 78,394.03 × 31,314.23
  4. Step 4: Simplify right side
    56,806.87x = 2,454,848,215.79
  5. Step 5: Solve for x
    x = 2,454,848,215.79/56,806.87
  6. Step 6: Final answer
    x = 43,213.93

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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.