Home / 45,586.06-68,386.32-19,291

Finding the Fourth Proportional to 45,586.06, 68,386.32 and 19,291

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Solution

The fourth proportional to 45,586.06, 68,386.32 and 19,291 is: 28,939.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,586.06 : 68,386.32 = 19,291 : x
  2. Step 2: Convert to fraction form
    45,586.06/68,386.32 = 19,291/x
  3. Step 3: Cross multiply
    45,586.06x = 68,386.32 × 19,291
  4. Step 4: Simplify right side
    45,586.06x = 1,319,240,499.12
  5. Step 5: Solve for x
    x = 1,319,240,499.12/45,586.06
  6. Step 6: Final answer
    x = 28,939.56

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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.