Home / 56,907.63-78,540.44-31,758.75

Finding the Fourth Proportional to 56,907.63, 78,540.44 and 31,758.75

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Solution

The fourth proportional to 56,907.63, 78,540.44 and 31,758.75 is: 43,831.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,907.63 : 78,540.44 = 31,758.75 : x
  2. Step 2: Convert to fraction form
    56,907.63/78,540.44 = 31,758.75/x
  3. Step 3: Cross multiply
    56,907.63x = 78,540.44 × 31,758.75
  4. Step 4: Simplify right side
    56,907.63x = 2,494,346,040.06
  5. Step 5: Solve for x
    x = 2,494,346,040.06/56,907.63
  6. Step 6: Final answer
    x = 43,831.49

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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.