Home / 49,408.32-74,090.12-21,315.12

Finding the Fourth Proportional to 49,408.32, 74,090.12 and 21,315.12

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Solution

The fourth proportional to 49,408.32, 74,090.12 and 21,315.12 is: 31,963.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,408.32 : 74,090.12 = 21,315.12 : x
  2. Step 2: Convert to fraction form
    49,408.32/74,090.12 = 21,315.12/x
  3. Step 3: Cross multiply
    49,408.32x = 74,090.12 × 21,315.12
  4. Step 4: Simplify right side
    49,408.32x = 1,579,239,798.61
  5. Step 5: Solve for x
    x = 1,579,239,798.61/49,408.32
  6. Step 6: Final answer
    x = 31,963.03

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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.