Home / 49,407.09-74,088.21-21,313.86

Finding the Fourth Proportional to 49,407.09, 74,088.21 and 21,313.86

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Solution

The fourth proportional to 49,407.09, 74,088.21 and 21,313.86 is: 31,961.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,407.09 : 74,088.21 = 21,313.86 : x
  2. Step 2: Convert to fraction form
    49,407.09/74,088.21 = 21,313.86/x
  3. Step 3: Cross multiply
    49,407.09x = 74,088.21 × 21,313.86
  4. Step 4: Simplify right side
    49,407.09x = 1,579,105,735.59
  5. Step 5: Solve for x
    x = 1,579,105,735.59/49,407.09
  6. Step 6: Final answer
    x = 31,961.12

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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.