Home / 57,257.73-78,932.61-40,210.07

Finding the Fourth Proportional to 57,257.73, 78,932.61 and 40,210.07

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Solution

The fourth proportional to 57,257.73, 78,932.61 and 40,210.07 is: 55,431.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,257.73 : 78,932.61 = 40,210.07 : x
  2. Step 2: Convert to fraction form
    57,257.73/78,932.61 = 40,210.07/x
  3. Step 3: Cross multiply
    57,257.73x = 78,932.61 × 40,210.07
  4. Step 4: Simplify right side
    57,257.73x = 3,173,885,378.72
  5. Step 5: Solve for x
    x = 3,173,885,378.72/57,257.73
  6. Step 6: Final answer
    x = 55,431.56

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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.