Home / 57,845.40-86,768.10-54,346.20

Finding the Fourth Proportional to 57,845.40, 86,768.10 and 54,346.20

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Solution

The fourth proportional to 57,845.40, 86,768.10 and 54,346.20 is: 81,519.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,845.40 : 86,768.10 = 54,346.20 : x
  2. Step 2: Convert to fraction form
    57,845.40/86,768.10 = 54,346.20/x
  3. Step 3: Cross multiply
    57,845.40x = 86,768.10 × 54,346.20
  4. Step 4: Simplify right side
    57,845.40x = 4,715,516,516.22
  5. Step 5: Solve for x
    x = 4,715,516,516.22/57,845.40
  6. Step 6: Final answer
    x = 81,519.30

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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.