Home / 56,797.09-78,376.79-31,303.37

Finding the Fourth Proportional to 56,797.09, 78,376.79 and 31,303.37

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Solution

The fourth proportional to 56,797.09, 78,376.79 and 31,303.37 is: 43,196.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,797.09 : 78,376.79 = 31,303.37 : x
  2. Step 2: Convert to fraction form
    56,797.09/78,376.79 = 31,303.37/x
  3. Step 3: Cross multiply
    56,797.09x = 78,376.79 × 31,303.37
  4. Step 4: Simplify right side
    56,797.09x = 2,453,457,696.21
  5. Step 5: Solve for x
    x = 2,453,457,696.21/56,797.09
  6. Step 6: Final answer
    x = 43,196.89

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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.