Home / 78,550.06-117,739.40-38,596.54

Finding the Fourth Proportional to 78,550.06, 117,739.40 and 38,596.54

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Solution

The fourth proportional to 78,550.06, 117,739.40 and 38,596.54 is: 57,852.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,550.06 : 117,739.40 = 38,596.54 : x
  2. Step 2: Convert to fraction form
    78,550.06/117,739.40 = 38,596.54/x
  3. Step 3: Cross multiply
    78,550.06x = 117,739.40 × 38,596.54
  4. Step 4: Simplify right side
    78,550.06x = 4,544,333,461.68
  5. Step 5: Solve for x
    x = 4,544,333,461.68/78,550.06
  6. Step 6: Final answer
    x = 57,852.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.