Home / 56,923.64-78,554.26-31,431.59

Finding the Fourth Proportional to 56,923.64, 78,554.26 and 31,431.59

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Solution

The fourth proportional to 56,923.64, 78,554.26 and 31,431.59 is: 43,375.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,923.64 : 78,554.26 = 31,431.59 : x
  2. Step 2: Convert to fraction form
    56,923.64/78,554.26 = 31,431.59/x
  3. Step 3: Cross multiply
    56,923.64x = 78,554.26 × 31,431.59
  4. Step 4: Simplify right side
    56,923.64x = 2,469,085,293.07
  5. Step 5: Solve for x
    x = 2,469,085,293.07/56,923.64
  6. Step 6: Final answer
    x = 43,375.39

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1.5x scale

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.