Home / 49,400.31-74,047.32-21,333.57

Finding the Fourth Proportional to 49,400.31, 74,047.32 and 21,333.57

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Solution

The fourth proportional to 49,400.31, 74,047.32 and 21,333.57 is: 31,977.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,400.31 : 74,047.32 = 21,333.57 : x
  2. Step 2: Convert to fraction form
    49,400.31/74,047.32 = 21,333.57/x
  3. Step 3: Cross multiply
    49,400.31x = 74,047.32 × 21,333.57
  4. Step 4: Simplify right side
    49,400.31x = 1,579,693,684.53
  5. Step 5: Solve for x
    x = 1,579,693,684.53/49,400.31
  6. Step 6: Final answer
    x = 31,977.40

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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.