Home / 84,014.10-115,888.20-49,999.80

Finding the Fourth Proportional to 84,014.10, 115,888.20 and 49,999.80

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Solution

The fourth proportional to 84,014.10, 115,888.20 and 49,999.80 is: 68,969.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,014.10 : 115,888.20 = 49,999.80 : x
  2. Step 2: Convert to fraction form
    84,014.10/115,888.20 = 49,999.80/x
  3. Step 3: Cross multiply
    84,014.10x = 115,888.20 × 49,999.80
  4. Step 4: Simplify right side
    84,014.10x = 5,794,386,822.36
  5. Step 5: Solve for x
    x = 5,794,386,822.36/84,014.10
  6. Step 6: Final answer
    x = 68,969.22

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1.5x scale

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.