Home / 86,340.76-129,434.30-33,738.28

Finding the Fourth Proportional to 86,340.76, 129,434.30 and 33,738.28

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Solution

The fourth proportional to 86,340.76, 129,434.30 and 33,738.28 is: 50,577.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,340.76 : 129,434.30 = 33,738.28 : x
  2. Step 2: Convert to fraction form
    86,340.76/129,434.30 = 33,738.28/x
  3. Step 3: Cross multiply
    86,340.76x = 129,434.30 × 33,738.28
  4. Step 4: Simplify right side
    86,340.76x = 4,366,890,655.00
  5. Step 5: Solve for x
    x = 4,366,890,655.00/86,340.76
  6. Step 6: Final answer
    x = 50,577.39

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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.