Home / 56,918.58-78,546.07-31,424.48

Finding the Fourth Proportional to 56,918.58, 78,546.07 and 31,424.48

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Solution

The fourth proportional to 56,918.58, 78,546.07 and 31,424.48 is: 43,364.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,918.58 : 78,546.07 = 31,424.48 : x
  2. Step 2: Convert to fraction form
    56,918.58/78,546.07 = 31,424.48/x
  3. Step 3: Cross multiply
    56,918.58x = 78,546.07 × 31,424.48
  4. Step 4: Simplify right side
    56,918.58x = 2,468,269,484.35
  5. Step 5: Solve for x
    x = 2,468,269,484.35/56,918.58
  6. Step 6: Final answer
    x = 43,364.92

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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.