Home / 55,191.82-76,162.60-31,317.07

Finding the Fourth Proportional to 55,191.82, 76,162.60 and 31,317.07

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Solution

The fourth proportional to 55,191.82, 76,162.60 and 31,317.07 is: 43,216.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,191.82 : 76,162.60 = 31,317.07 : x
  2. Step 2: Convert to fraction form
    55,191.82/76,162.60 = 31,317.07/x
  3. Step 3: Cross multiply
    55,191.82x = 76,162.60 × 31,317.07
  4. Step 4: Simplify right side
    55,191.82x = 2,385,189,475.58
  5. Step 5: Solve for x
    x = 2,385,189,475.58/55,191.82
  6. Step 6: Final answer
    x = 43,216.36

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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.