Home / 86,556.71-129,815.01-27,381.35

Finding the Fourth Proportional to 86,556.71, 129,815.01 and 27,381.35

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Solution

The fourth proportional to 86,556.71, 129,815.01 and 27,381.35 is: 41,065.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,556.71 : 129,815.01 = 27,381.35 : x
  2. Step 2: Convert to fraction form
    86,556.71/129,815.01 = 27,381.35/x
  3. Step 3: Cross multiply
    86,556.71x = 129,815.01 × 27,381.35
  4. Step 4: Simplify right side
    86,556.71x = 3,554,509,574.99
  5. Step 5: Solve for x
    x = 3,554,509,574.99/86,556.71
  6. Step 6: Final answer
    x = 41,065.68

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1.5x scale

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.