Home / 89,307.81-123,255.41-51,582.33

Finding the Fourth Proportional to 89,307.81, 123,255.41 and 51,582.33

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Solution

The fourth proportional to 89,307.81, 123,255.41 and 51,582.33 is: 71,189.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,307.81 : 123,255.41 = 51,582.33 : x
  2. Step 2: Convert to fraction form
    89,307.81/123,255.41 = 51,582.33/x
  3. Step 3: Cross multiply
    89,307.81x = 123,255.41 × 51,582.33
  4. Step 4: Simplify right side
    89,307.81x = 6,357,800,974.99
  5. Step 5: Solve for x
    x = 6,357,800,974.99/89,307.81
  6. Step 6: Final answer
    x = 71,189.75

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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.