Home / 86,208.81-118,968.24-47,971.85

Finding the Fourth Proportional to 86,208.81, 118,968.24 and 47,971.85

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Solution

The fourth proportional to 86,208.81, 118,968.24 and 47,971.85 is: 66,201.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,208.81 : 118,968.24 = 47,971.85 : x
  2. Step 2: Convert to fraction form
    86,208.81/118,968.24 = 47,971.85/x
  3. Step 3: Cross multiply
    86,208.81x = 118,968.24 × 47,971.85
  4. Step 4: Simplify right side
    86,208.81x = 5,707,126,149.10
  5. Step 5: Solve for x
    x = 5,707,126,149.10/86,208.81
  6. Step 6: Final answer
    x = 66,201.20

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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.