Home / 51,078.81-76,618.23-14,142.81

Finding the Fourth Proportional to 51,078.81, 76,618.23 and 14,142.81

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Solution

The fourth proportional to 51,078.81, 76,618.23 and 14,142.81 is: 21,214.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,078.81 : 76,618.23 = 14,142.81 : x
  2. Step 2: Convert to fraction form
    51,078.81/76,618.23 = 14,142.81/x
  3. Step 3: Cross multiply
    51,078.81x = 76,618.23 × 14,142.81
  4. Step 4: Simplify right side
    51,078.81x = 1,083,597,069.43
  5. Step 5: Solve for x
    x = 1,083,597,069.43/51,078.81
  6. Step 6: Final answer
    x = 21,214.22

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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.