Home / 55,016.21-75,922.59-31,147.47

Finding the Fourth Proportional to 55,016.21, 75,922.59 and 31,147.47

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Solution

The fourth proportional to 55,016.21, 75,922.59 and 31,147.47 is: 42,983.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,016.21 : 75,922.59 = 31,147.47 : x
  2. Step 2: Convert to fraction form
    55,016.21/75,922.59 = 31,147.47/x
  3. Step 3: Cross multiply
    55,016.21x = 75,922.59 × 31,147.47
  4. Step 4: Simplify right side
    55,016.21x = 2,364,796,594.35
  5. Step 5: Solve for x
    x = 2,364,796,594.35/55,016.21
  6. Step 6: Final answer
    x = 42,983.64

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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.