Home / 57,666.90-86,539.50-20,226.69

Finding the Fourth Proportional to 57,666.90, 86,539.50 and 20,226.69

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Solution

The fourth proportional to 57,666.90, 86,539.50 and 20,226.69 is: 30,353.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,666.90 : 86,539.50 = 20,226.69 : x
  2. Step 2: Convert to fraction form
    57,666.90/86,539.50 = 20,226.69/x
  3. Step 3: Cross multiply
    57,666.90x = 86,539.50 × 20,226.69
  4. Step 4: Simplify right side
    57,666.90x = 1,750,407,639.26
  5. Step 5: Solve for x
    x = 1,750,407,639.26/57,666.90
  6. Step 6: Final answer
    x = 30,353.77

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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.