Home / 57,813.20-86,739.24-22,756.40

Finding the Fourth Proportional to 57,813.20, 86,739.24 and 22,756.40

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Solution

The fourth proportional to 57,813.20, 86,739.24 and 22,756.40 is: 34,142.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,813.20 : 86,739.24 = 22,756.40 : x
  2. Step 2: Convert to fraction form
    57,813.20/86,739.24 = 22,756.40/x
  3. Step 3: Cross multiply
    57,813.20x = 86,739.24 × 22,756.40
  4. Step 4: Simplify right side
    57,813.20x = 1,973,872,841.14
  5. Step 5: Solve for x
    x = 1,973,872,841.14/57,813.20
  6. Step 6: Final answer
    x = 34,142.25

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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.