Home / 51,455.88-71,015.40-30,237.12

Finding the Fourth Proportional to 51,455.88, 71,015.40 and 30,237.12

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Solution

The fourth proportional to 51,455.88, 71,015.40 and 30,237.12 is: 41,730.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,455.88 : 71,015.40 = 30,237.12 : x
  2. Step 2: Convert to fraction form
    51,455.88/71,015.40 = 30,237.12/x
  3. Step 3: Cross multiply
    51,455.88x = 71,015.40 × 30,237.12
  4. Step 4: Simplify right side
    51,455.88x = 2,147,301,171.65
  5. Step 5: Solve for x
    x = 2,147,301,171.65/51,455.88
  6. Step 6: Final answer
    x = 41,730.92

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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.