Home / 84,013.60-115,887.51-49,999.30

Finding the Fourth Proportional to 84,013.60, 115,887.51 and 49,999.30

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Solution

The fourth proportional to 84,013.60, 115,887.51 and 49,999.30 is: 68,968.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,013.60 : 115,887.51 = 49,999.30 : x
  2. Step 2: Convert to fraction form
    84,013.60/115,887.51 = 49,999.30/x
  3. Step 3: Cross multiply
    84,013.60x = 115,887.51 × 49,999.30
  4. Step 4: Simplify right side
    84,013.60x = 5,794,294,378.74
  5. Step 5: Solve for x
    x = 5,794,294,378.74/84,013.60
  6. Step 6: Final answer
    x = 68,968.53

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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.