Home / 81,468.72-112,431.24-45,670.23

Finding the Fourth Proportional to 81,468.72, 112,431.24 and 45,670.23

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Solution

The fourth proportional to 81,468.72, 112,431.24 and 45,670.23 is: 63,027.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,468.72 : 112,431.24 = 45,670.23 : x
  2. Step 2: Convert to fraction form
    81,468.72/112,431.24 = 45,670.23/x
  3. Step 3: Cross multiply
    81,468.72x = 112,431.24 × 45,670.23
  4. Step 4: Simplify right side
    81,468.72x = 5,134,760,589.99
  5. Step 5: Solve for x
    x = 5,134,760,589.99/81,468.72
  6. Step 6: Final answer
    x = 63,027.39

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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.