Home / 39,078.05-58,622.54-12,777.55

Finding the Fourth Proportional to 39,078.05, 58,622.54 and 12,777.55

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Solution

The fourth proportional to 39,078.05, 58,622.54 and 12,777.55 is: 19,168.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,078.05 : 58,622.54 = 12,777.55 : x
  2. Step 2: Convert to fraction form
    39,078.05/58,622.54 = 12,777.55/x
  3. Step 3: Cross multiply
    39,078.05x = 58,622.54 × 12,777.55
  4. Step 4: Simplify right side
    39,078.05x = 749,052,225.53
  5. Step 5: Solve for x
    x = 749,052,225.53/39,078.05
  6. Step 6: Final answer
    x = 19,168.11

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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.