Home / 90,201.35-124,484.09-49,916.81

Finding the Fourth Proportional to 90,201.35, 124,484.09 and 49,916.81

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Solution

The fourth proportional to 90,201.35, 124,484.09 and 49,916.81 is: 68,888.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,201.35 : 124,484.09 = 49,916.81 : x
  2. Step 2: Convert to fraction form
    90,201.35/124,484.09 = 49,916.81/x
  3. Step 3: Cross multiply
    90,201.35x = 124,484.09 × 49,916.81
  4. Step 4: Simplify right side
    90,201.35x = 6,213,848,668.55
  5. Step 5: Solve for x
    x = 6,213,848,668.55/90,201.35
  6. Step 6: Final answer
    x = 68,888.64

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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.