Home / 86,155.58-129,218.79-23,811.50

Finding the Fourth Proportional to 86,155.58, 129,218.79 and 23,811.50

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Solution

The fourth proportional to 86,155.58, 129,218.79 and 23,811.50 is: 35,713.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,155.58 : 129,218.79 = 23,811.50 : x
  2. Step 2: Convert to fraction form
    86,155.58/129,218.79 = 23,811.50/x
  3. Step 3: Cross multiply
    86,155.58x = 129,218.79 × 23,811.50
  4. Step 4: Simplify right side
    86,155.58x = 3,076,893,218.09
  5. Step 5: Solve for x
    x = 3,076,893,218.09/86,155.58
  6. Step 6: Final answer
    x = 35,713.22

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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.