Home / 53,015.67-73,131.12-31,782.60

Finding the Fourth Proportional to 53,015.67, 73,131.12 and 31,782.60

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Solution

The fourth proportional to 53,015.67, 73,131.12 and 31,782.60 is: 43,841.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,015.67 : 73,131.12 = 31,782.60 : x
  2. Step 2: Convert to fraction form
    53,015.67/73,131.12 = 31,782.60/x
  3. Step 3: Cross multiply
    53,015.67x = 73,131.12 × 31,782.60
  4. Step 4: Simplify right side
    53,015.67x = 2,324,297,134.51
  5. Step 5: Solve for x
    x = 2,324,297,134.51/53,015.67
  6. Step 6: Final answer
    x = 43,841.70

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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.