Home / 55,739.12-76,920.04-31,866.31

Finding the Fourth Proportional to 55,739.12, 76,920.04 and 31,866.31

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Solution

The fourth proportional to 55,739.12, 76,920.04 and 31,866.31 is: 43,975.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,739.12 : 76,920.04 = 31,866.31 : x
  2. Step 2: Convert to fraction form
    55,739.12/76,920.04 = 31,866.31/x
  3. Step 3: Cross multiply
    55,739.12x = 76,920.04 × 31,866.31
  4. Step 4: Simplify right side
    55,739.12x = 2,451,157,567.89
  5. Step 5: Solve for x
    x = 2,451,157,567.89/55,739.12
  6. Step 6: Final answer
    x = 43,975.54

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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.