Home / 86,939.64-130,408.18-27,774.52

Finding the Fourth Proportional to 86,939.64, 130,408.18 and 27,774.52

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Solution

The fourth proportional to 86,939.64, 130,408.18 and 27,774.52 is: 41,661.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,939.64 : 130,408.18 = 27,774.52 : x
  2. Step 2: Convert to fraction form
    86,939.64/130,408.18 = 27,774.52/x
  3. Step 3: Cross multiply
    86,939.64x = 130,408.18 × 27,774.52
  4. Step 4: Simplify right side
    86,939.64x = 3,622,024,603.57
  5. Step 5: Solve for x
    x = 3,622,024,603.57/86,939.64
  6. Step 6: Final answer
    x = 41,661.37

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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.