Home / 85,910.83-118,518.09-55,703.80

Finding the Fourth Proportional to 85,910.83, 118,518.09 and 55,703.80

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Solution

The fourth proportional to 85,910.83, 118,518.09 and 55,703.80 is: 76,846.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,910.83 : 118,518.09 = 55,703.80 : x
  2. Step 2: Convert to fraction form
    85,910.83/118,518.09 = 55,703.80/x
  3. Step 3: Cross multiply
    85,910.83x = 118,518.09 × 55,703.80
  4. Step 4: Simplify right side
    85,910.83x = 6,601,907,921.00
  5. Step 5: Solve for x
    x = 6,601,907,921.00/85,910.83
  6. Step 6: Final answer
    x = 76,846.05

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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.