Home / 51,457.44-77,141.79-19,889.65

Finding the Fourth Proportional to 51,457.44, 77,141.79 and 19,889.65

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Solution

The fourth proportional to 51,457.44, 77,141.79 and 19,889.65 is: 29,817.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,457.44 : 77,141.79 = 19,889.65 : x
  2. Step 2: Convert to fraction form
    51,457.44/77,141.79 = 19,889.65/x
  3. Step 3: Cross multiply
    51,457.44x = 77,141.79 × 19,889.65
  4. Step 4: Simplify right side
    51,457.44x = 1,534,323,203.47
  5. Step 5: Solve for x
    x = 1,534,323,203.47/51,457.44
  6. Step 6: Final answer
    x = 29,817.32

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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.