Home / 81,670.24-112,702.08-49,892.32

Finding the Fourth Proportional to 81,670.24, 112,702.08 and 49,892.32

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Solution

The fourth proportional to 81,670.24, 112,702.08 and 49,892.32 is: 68,849.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,670.24 : 112,702.08 = 49,892.32 : x
  2. Step 2: Convert to fraction form
    81,670.24/112,702.08 = 49,892.32/x
  3. Step 3: Cross multiply
    81,670.24x = 112,702.08 × 49,892.32
  4. Step 4: Simplify right side
    81,670.24x = 5,622,968,240.03
  5. Step 5: Solve for x
    x = 5,622,968,240.03/81,670.24
  6. Step 6: Final answer
    x = 68,849.66

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.