Home / 51,239.79-76,807.04-19,641.29

Finding the Fourth Proportional to 51,239.79, 76,807.04 and 19,641.29

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Solution

The fourth proportional to 51,239.79, 76,807.04 and 19,641.29 is: 29,441.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,239.79 : 76,807.04 = 19,641.29 : x
  2. Step 2: Convert to fraction form
    51,239.79/76,807.04 = 19,641.29/x
  3. Step 3: Cross multiply
    51,239.79x = 76,807.04 × 19,641.29
  4. Step 4: Simplify right side
    51,239.79x = 1,508,588,864.44
  5. Step 5: Solve for x
    x = 1,508,588,864.44/51,239.79
  6. Step 6: Final answer
    x = 29,441.75

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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.