Home / 86,428.05-129,590.24-33,774.81

Finding the Fourth Proportional to 86,428.05, 129,590.24 and 33,774.81

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Solution

The fourth proportional to 86,428.05, 129,590.24 and 33,774.81 is: 50,641.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,428.05 : 129,590.24 = 33,774.81 : x
  2. Step 2: Convert to fraction form
    86,428.05/129,590.24 = 33,774.81/x
  3. Step 3: Cross multiply
    86,428.05x = 129,590.24 × 33,774.81
  4. Step 4: Simplify right side
    86,428.05x = 4,376,885,564.98
  5. Step 5: Solve for x
    x = 4,376,885,564.98/86,428.05
  6. Step 6: Final answer
    x = 50,641.96

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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.