Home / 86,919.04-130,399.76-27,754.72

Finding the Fourth Proportional to 86,919.04, 130,399.76 and 27,754.72

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Solution

The fourth proportional to 86,919.04, 130,399.76 and 27,754.72 is: 41,638.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,919.04 : 130,399.76 = 27,754.72 : x
  2. Step 2: Convert to fraction form
    86,919.04/130,399.76 = 27,754.72/x
  3. Step 3: Cross multiply
    86,919.04x = 130,399.76 × 27,754.72
  4. Step 4: Simplify right side
    86,919.04x = 3,619,208,826.87
  5. Step 5: Solve for x
    x = 3,619,208,826.87/86,919.04
  6. Step 6: Final answer
    x = 41,638.85

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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.