Home / 86,118.21-129,152.21-33,515.19

Finding the Fourth Proportional to 86,118.21, 129,152.21 and 33,515.19

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Solution

The fourth proportional to 86,118.21, 129,152.21 and 33,515.19 is: 50,263.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,118.21 : 129,152.21 = 33,515.19 : x
  2. Step 2: Convert to fraction form
    86,118.21/129,152.21 = 33,515.19/x
  3. Step 3: Cross multiply
    86,118.21x = 129,152.21 × 33,515.19
  4. Step 4: Simplify right side
    86,118.21x = 4,328,560,689.49
  5. Step 5: Solve for x
    x = 4,328,560,689.49/86,118.21
  6. Step 6: Final answer
    x = 50,263.01

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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.