Home / 86,271.75-119,090.66-57,199.23

Finding the Fourth Proportional to 86,271.75, 119,090.66 and 57,199.23

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Solution

The fourth proportional to 86,271.75, 119,090.66 and 57,199.23 is: 78,958.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,271.75 : 119,090.66 = 57,199.23 : x
  2. Step 2: Convert to fraction form
    86,271.75/119,090.66 = 57,199.23/x
  3. Step 3: Cross multiply
    86,271.75x = 119,090.66 × 57,199.23
  4. Step 4: Simplify right side
    86,271.75x = 6,811,893,766.20
  5. Step 5: Solve for x
    x = 6,811,893,766.20/86,271.75
  6. Step 6: Final answer
    x = 78,958.57

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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.