Home / 55,911-83,815.47-51,041.28

Finding the Fourth Proportional to 55,911, 83,815.47 and 51,041.28

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Solution

The fourth proportional to 55,911, 83,815.47 and 51,041.28 is: 76,515.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,911 : 83,815.47 = 51,041.28 : x
  2. Step 2: Convert to fraction form
    55,911/83,815.47 = 51,041.28/x
  3. Step 3: Cross multiply
    55,911x = 83,815.47 × 51,041.28
  4. Step 4: Simplify right side
    55,911x = 4,278,048,872.60
  5. Step 5: Solve for x
    x = 4,278,048,872.60/55,911
  6. Step 6: Final answer
    x = 76,515.33

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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.