Home / 86,554.97-129,847.03-39,806.63

Finding the Fourth Proportional to 86,554.97, 129,847.03 and 39,806.63

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Solution

The fourth proportional to 86,554.97, 129,847.03 and 39,806.63 is: 59,716.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,554.97 : 129,847.03 = 39,806.63 : x
  2. Step 2: Convert to fraction form
    86,554.97/129,847.03 = 39,806.63/x
  3. Step 3: Cross multiply
    86,554.97x = 129,847.03 × 39,806.63
  4. Step 4: Simplify right side
    86,554.97x = 5,168,771,931.06
  5. Step 5: Solve for x
    x = 5,168,771,931.06/86,554.97
  6. Step 6: Final answer
    x = 59,716.64

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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.