Home / 55,554.32-76,663.44-31,680.44

Finding the Fourth Proportional to 55,554.32, 76,663.44 and 31,680.44

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Solution

The fourth proportional to 55,554.32, 76,663.44 and 31,680.44 is: 43,718.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,554.32 : 76,663.44 = 31,680.44 : x
  2. Step 2: Convert to fraction form
    55,554.32/76,663.44 = 31,680.44/x
  3. Step 3: Cross multiply
    55,554.32x = 76,663.44 × 31,680.44
  4. Step 4: Simplify right side
    55,554.32x = 2,428,731,511.11
  5. Step 5: Solve for x
    x = 2,428,731,511.11/55,554.32
  6. Step 6: Final answer
    x = 43,718.14

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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.