Home / 56,795.92-78,378.89-31,303.19

Finding the Fourth Proportional to 56,795.92, 78,378.89 and 31,303.19

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Solution

The fourth proportional to 56,795.92, 78,378.89 and 31,303.19 is: 43,198.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,795.92 : 78,378.89 = 31,303.19 : x
  2. Step 2: Convert to fraction form
    56,795.92/78,378.89 = 31,303.19/x
  3. Step 3: Cross multiply
    56,795.92x = 78,378.89 × 31,303.19
  4. Step 4: Simplify right side
    56,795.92x = 2,453,509,285.66
  5. Step 5: Solve for x
    x = 2,453,509,285.66/56,795.92
  6. Step 6: Final answer
    x = 43,198.69

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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.