Home / 40,193.08-55,455.13-31,668.78

Finding the Fourth Proportional to 40,193.08, 55,455.13 and 31,668.78

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Solution

The fourth proportional to 40,193.08, 55,455.13 and 31,668.78 is: 43,694.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,193.08 : 55,455.13 = 31,668.78 : x
  2. Step 2: Convert to fraction form
    40,193.08/55,455.13 = 31,668.78/x
  3. Step 3: Cross multiply
    40,193.08x = 55,455.13 × 31,668.78
  4. Step 4: Simplify right side
    40,193.08x = 1,756,196,311.84
  5. Step 5: Solve for x
    x = 1,756,196,311.84/40,193.08
  6. Step 6: Final answer
    x = 43,694.00

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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.