Home / 86,263.56-129,428.28-33,709.68

Finding the Fourth Proportional to 86,263.56, 129,428.28 and 33,709.68

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Solution

The fourth proportional to 86,263.56, 129,428.28 and 33,709.68 is: 50,577.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,263.56 : 129,428.28 = 33,709.68 : x
  2. Step 2: Convert to fraction form
    86,263.56/129,428.28 = 33,709.68/x
  3. Step 3: Cross multiply
    86,263.56x = 129,428.28 × 33,709.68
  4. Step 4: Simplify right side
    86,263.56x = 4,362,985,901.75
  5. Step 5: Solve for x
    x = 4,362,985,901.75/86,263.56
  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.