Home / 40,856.07-56,383.79-30,766.71

Finding the Fourth Proportional to 40,856.07, 56,383.79 and 30,766.71

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Solution

The fourth proportional to 40,856.07, 56,383.79 and 30,766.71 is: 42,459.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,856.07 : 56,383.79 = 30,766.71 : x
  2. Step 2: Convert to fraction form
    40,856.07/56,383.79 = 30,766.71/x
  3. Step 3: Cross multiply
    40,856.07x = 56,383.79 × 30,766.71
  4. Step 4: Simplify right side
    40,856.07x = 1,734,743,561.80
  5. Step 5: Solve for x
    x = 1,734,743,561.80/40,856.07
  6. Step 6: Final answer
    x = 42,459.87

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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.