Home / 85,107.36-117,440.64-49,285.92

Finding the Fourth Proportional to 85,107.36, 117,440.64 and 49,285.92

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Solution

The fourth proportional to 85,107.36, 117,440.64 and 49,285.92 is: 68,010.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,107.36 : 117,440.64 = 49,285.92 : x
  2. Step 2: Convert to fraction form
    85,107.36/117,440.64 = 49,285.92/x
  3. Step 3: Cross multiply
    85,107.36x = 117,440.64 × 49,285.92
  4. Step 4: Simplify right side
    85,107.36x = 5,788,169,987.79
  5. Step 5: Solve for x
    x = 5,788,169,987.79/85,107.36
  6. Step 6: Final answer
    x = 68,010.22

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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.