Home / 86,721.82-130,105.12-26,748.94

Finding the Fourth Proportional to 86,721.82, 130,105.12 and 26,748.94

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Solution

The fourth proportional to 86,721.82, 130,105.12 and 26,748.94 is: 40,130.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,721.82 : 130,105.12 = 26,748.94 : x
  2. Step 2: Convert to fraction form
    86,721.82/130,105.12 = 26,748.94/x
  3. Step 3: Cross multiply
    86,721.82x = 130,105.12 × 26,748.94
  4. Step 4: Simplify right side
    86,721.82x = 3,480,174,048.57
  5. Step 5: Solve for x
    x = 3,480,174,048.57/86,721.82
  6. Step 6: Final answer
    x = 40,130.32

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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.