Home / 57,418.36-86,117.80-15,865.36

Finding the Fourth Proportional to 57,418.36, 86,117.80 and 15,865.36

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Solution

The fourth proportional to 57,418.36, 86,117.80 and 15,865.36 is: 23,795.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,418.36 : 86,117.80 = 15,865.36 : x
  2. Step 2: Convert to fraction form
    57,418.36/86,117.80 = 15,865.36/x
  3. Step 3: Cross multiply
    57,418.36x = 86,117.80 × 15,865.36
  4. Step 4: Simplify right side
    57,418.36x = 1,366,289,899.41
  5. Step 5: Solve for x
    x = 1,366,289,899.41/57,418.36
  6. Step 6: Final answer
    x = 23,795.35

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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.