Home / 85,011.32-117,249.72-54,801.56

Finding the Fourth Proportional to 85,011.32, 117,249.72 and 54,801.56

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Solution

The fourth proportional to 85,011.32, 117,249.72 and 54,801.56 is: 75,583.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,011.32 : 117,249.72 = 54,801.56 : x
  2. Step 2: Convert to fraction form
    85,011.32/117,249.72 = 54,801.56/x
  3. Step 3: Cross multiply
    85,011.32x = 117,249.72 × 54,801.56
  4. Step 4: Simplify right side
    85,011.32x = 6,425,467,565.56
  5. Step 5: Solve for x
    x = 6,425,467,565.56/85,011.32
  6. Step 6: Final answer
    x = 75,583.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.