Home / 56,869.75-78,480.26-31,719.25

Finding the Fourth Proportional to 56,869.75, 78,480.26 and 31,719.25

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Solution

The fourth proportional to 56,869.75, 78,480.26 and 31,719.25 is: 43,772.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,869.75 : 78,480.26 = 31,719.25 : x
  2. Step 2: Convert to fraction form
    56,869.75/78,480.26 = 31,719.25/x
  3. Step 3: Cross multiply
    56,869.75x = 78,480.26 × 31,719.25
  4. Step 4: Simplify right side
    56,869.75x = 2,489,334,987.01
  5. Step 5: Solve for x
    x = 2,489,334,987.01/56,869.75
  6. Step 6: Final answer
    x = 43,772.57

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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.