Home / 42,467.18-63,640.31-31,285.94

Finding the Fourth Proportional to 42,467.18, 63,640.31 and 31,285.94

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Solution

The fourth proportional to 42,467.18, 63,640.31 and 31,285.94 is: 46,884.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,467.18 : 63,640.31 = 31,285.94 : x
  2. Step 2: Convert to fraction form
    42,467.18/63,640.31 = 31,285.94/x
  3. Step 3: Cross multiply
    42,467.18x = 63,640.31 × 31,285.94
  4. Step 4: Simplify right side
    42,467.18x = 1,991,046,445.61
  5. Step 5: Solve for x
    x = 1,991,046,445.61/42,467.18
  6. Step 6: Final answer
    x = 46,884.36

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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.