Home / 86,109.33-118,823.99-47,865.87

Finding the Fourth Proportional to 86,109.33, 118,823.99 and 47,865.87

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Solution

The fourth proportional to 86,109.33, 118,823.99 and 47,865.87 is: 66,051.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,109.33 : 118,823.99 = 47,865.87 : x
  2. Step 2: Convert to fraction form
    86,109.33/118,823.99 = 47,865.87/x
  3. Step 3: Cross multiply
    86,109.33x = 118,823.99 × 47,865.87
  4. Step 4: Simplify right side
    86,109.33x = 5,687,613,418.89
  5. Step 5: Solve for x
    x = 5,687,613,418.89/86,109.33
  6. Step 6: Final answer
    x = 66,051.07

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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.