Home / 51,880.99-77,822.97-20,289.76

Finding the Fourth Proportional to 51,880.99, 77,822.97 and 20,289.76

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Solution

The fourth proportional to 51,880.99, 77,822.97 and 20,289.76 is: 30,435.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,880.99 : 77,822.97 = 20,289.76 : x
  2. Step 2: Convert to fraction form
    51,880.99/77,822.97 = 20,289.76/x
  3. Step 3: Cross multiply
    51,880.99x = 77,822.97 × 20,289.76
  4. Step 4: Simplify right side
    51,880.99x = 1,579,009,383.79
  5. Step 5: Solve for x
    x = 1,579,009,383.79/51,880.99
  6. Step 6: Final answer
    x = 30,435.22

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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.