Home / 56,813.57-78,405.41-31,663.25

Finding the Fourth Proportional to 56,813.57, 78,405.41 and 31,663.25

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Solution

The fourth proportional to 56,813.57, 78,405.41 and 31,663.25 is: 43,696.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,813.57 : 78,405.41 = 31,663.25 : x
  2. Step 2: Convert to fraction form
    56,813.57/78,405.41 = 31,663.25/x
  3. Step 3: Cross multiply
    56,813.57x = 78,405.41 × 31,663.25
  4. Step 4: Simplify right side
    56,813.57x = 2,482,569,939.87
  5. Step 5: Solve for x
    x = 2,482,569,939.87/56,813.57
  6. Step 6: Final answer
    x = 43,696.78

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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.