Home / 85,862.98-118,489.14-47,616.36

Finding the Fourth Proportional to 85,862.98, 118,489.14 and 47,616.36

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Solution

The fourth proportional to 85,862.98, 118,489.14 and 47,616.36 is: 65,709.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,862.98 : 118,489.14 = 47,616.36 : x
  2. Step 2: Convert to fraction form
    85,862.98/118,489.14 = 47,616.36/x
  3. Step 3: Cross multiply
    85,862.98x = 118,489.14 × 47,616.36
  4. Step 4: Simplify right side
    85,862.98x = 5,642,021,546.33
  5. Step 5: Solve for x
    x = 5,642,021,546.33/85,862.98
  6. Step 6: Final answer
    x = 65,709.59

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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.