Home / 57,135.21-85,670.00-30,448.34

Finding the Fourth Proportional to 57,135.21, 85,670.00 and 30,448.34

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Solution

The fourth proportional to 57,135.21, 85,670.00 and 30,448.34 is: 45,655.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,135.21 : 85,670.00 = 30,448.34 : x
  2. Step 2: Convert to fraction form
    57,135.21/85,670.00 = 30,448.34/x
  3. Step 3: Cross multiply
    57,135.21x = 85,670.00 × 30,448.34
  4. Step 4: Simplify right side
    57,135.21x = 2,608,508,707.21
  5. Step 5: Solve for x
    x = 2,608,508,707.21/57,135.21
  6. Step 6: Final answer
    x = 45,655.01

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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.