Home / 86,118.09-129,152.02-33,515.07

Finding the Fourth Proportional to 86,118.09, 129,152.02 and 33,515.07

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Solution

The fourth proportional to 86,118.09, 129,152.02 and 33,515.07 is: 50,262.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,118.09 : 129,152.02 = 33,515.07 : x
  2. Step 2: Convert to fraction form
    86,118.09/129,152.02 = 33,515.07/x
  3. Step 3: Cross multiply
    86,118.09x = 129,152.02 × 33,515.07
  4. Step 4: Simplify right side
    86,118.09x = 4,328,538,990.94
  5. Step 5: Solve for x
    x = 4,328,538,990.94/86,118.09
  6. Step 6: Final answer
    x = 50,262.83

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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.