Home / 86,131.24-129,196.84-26,971.54

Finding the Fourth Proportional to 86,131.24, 129,196.84 and 26,971.54

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Solution

The fourth proportional to 86,131.24, 129,196.84 and 26,971.54 is: 40,457.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,131.24 : 129,196.84 = 26,971.54 : x
  2. Step 2: Convert to fraction form
    86,131.24/129,196.84 = 26,971.54/x
  3. Step 3: Cross multiply
    86,131.24x = 129,196.84 × 26,971.54
  4. Step 4: Simplify right side
    86,131.24x = 3,484,637,737.93
  5. Step 5: Solve for x
    x = 3,484,637,737.93/86,131.24
  6. Step 6: Final answer
    x = 40,457.30

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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.