Home / 84,851.61-117,091.96-47,128.29

Finding the Fourth Proportional to 84,851.61, 117,091.96 and 47,128.29

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Solution

The fourth proportional to 84,851.61, 117,091.96 and 47,128.29 is: 65,035.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,851.61 : 117,091.96 = 47,128.29 : x
  2. Step 2: Convert to fraction form
    84,851.61/117,091.96 = 47,128.29/x
  3. Step 3: Cross multiply
    84,851.61x = 117,091.96 × 47,128.29
  4. Step 4: Simplify right side
    84,851.61x = 5,518,343,847.55
  5. Step 5: Solve for x
    x = 5,518,343,847.55/84,851.61
  6. Step 6: Final answer
    x = 65,035.23

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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.