Home / 45,282.24-62,493.12-31,142.88

Finding the Fourth Proportional to 45,282.24, 62,493.12 and 31,142.88

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Solution

The fourth proportional to 45,282.24, 62,493.12 and 31,142.88 is: 42,979.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,282.24 : 62,493.12 = 31,142.88 : x
  2. Step 2: Convert to fraction form
    45,282.24/62,493.12 = 31,142.88/x
  3. Step 3: Cross multiply
    45,282.24x = 62,493.12 × 31,142.88
  4. Step 4: Simplify right side
    45,282.24x = 1,946,215,736.99
  5. Step 5: Solve for x
    x = 1,946,215,736.99/45,282.24
  6. Step 6: Final answer
    x = 42,979.67

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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.