Home / 49,407.12-74,093.40-21,319.56

Finding the Fourth Proportional to 49,407.12, 74,093.40 and 21,319.56

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Solution

The fourth proportional to 49,407.12, 74,093.40 and 21,319.56 is: 31,971.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,407.12 : 74,093.40 = 21,319.56 : x
  2. Step 2: Convert to fraction form
    49,407.12/74,093.40 = 21,319.56/x
  3. Step 3: Cross multiply
    49,407.12x = 74,093.40 × 21,319.56
  4. Step 4: Simplify right side
    49,407.12x = 1,579,638,686.90
  5. Step 5: Solve for x
    x = 1,579,638,686.90/49,407.12
  6. Step 6: Final answer
    x = 31,971.88

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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.