Home / 56,829.75-78,425.06-31,679.25

Finding the Fourth Proportional to 56,829.75, 78,425.06 and 31,679.25

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Solution

The fourth proportional to 56,829.75, 78,425.06 and 31,679.25 is: 43,717.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,829.75 : 78,425.06 = 31,679.25 : x
  2. Step 2: Convert to fraction form
    56,829.75/78,425.06 = 31,679.25/x
  3. Step 3: Cross multiply
    56,829.75x = 78,425.06 × 31,679.25
  4. Step 4: Simplify right side
    56,829.75x = 2,484,446,923.61
  5. Step 5: Solve for x
    x = 2,484,446,923.61/56,829.75
  6. Step 6: Final answer
    x = 43,717.37

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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.