Home / 45,643.51-68,473.36-20,682.55

Finding the Fourth Proportional to 45,643.51, 68,473.36 and 20,682.55

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Solution

The fourth proportional to 45,643.51, 68,473.36 and 20,682.55 is: 31,027.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,643.51 : 68,473.36 = 20,682.55 : x
  2. Step 2: Convert to fraction form
    45,643.51/68,473.36 = 20,682.55/x
  3. Step 3: Cross multiply
    45,643.51x = 68,473.36 × 20,682.55
  4. Step 4: Simplify right side
    45,643.51x = 1,416,203,691.87
  5. Step 5: Solve for x
    x = 1,416,203,691.87/45,643.51
  6. Step 6: Final answer
    x = 31,027.49

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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.