Home / 57,431.37-86,148.68-15,878.37

Finding the Fourth Proportional to 57,431.37, 86,148.68 and 15,878.37

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Solution

The fourth proportional to 57,431.37, 86,148.68 and 15,878.37 is: 23,818.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,431.37 : 86,148.68 = 15,878.37 : x
  2. Step 2: Convert to fraction form
    57,431.37/86,148.68 = 15,878.37/x
  3. Step 3: Cross multiply
    57,431.37x = 86,148.68 × 15,878.37
  4. Step 4: Simplify right side
    57,431.37x = 1,367,900,536.66
  5. Step 5: Solve for x
    x = 1,367,900,536.66/57,431.37
  6. Step 6: Final answer
    x = 23,818.00

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.