Home / 51,431.76-77,133.33-18,147.51

Finding the Fourth Proportional to 51,431.76, 77,133.33 and 18,147.51

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Solution

The fourth proportional to 51,431.76, 77,133.33 and 18,147.51 is: 27,216.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,431.76 : 77,133.33 = 18,147.51 : x
  2. Step 2: Convert to fraction form
    51,431.76/77,133.33 = 18,147.51/x
  3. Step 3: Cross multiply
    51,431.76x = 77,133.33 × 18,147.51
  4. Step 4: Simplify right side
    51,431.76x = 1,399,777,877.51
  5. Step 5: Solve for x
    x = 1,399,777,877.51/51,431.76
  6. Step 6: Final answer
    x = 27,216.22

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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.