Home / 51,316.35-76,984.07-19,725.13

Finding the Fourth Proportional to 51,316.35, 76,984.07 and 19,725.13

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Solution

The fourth proportional to 51,316.35, 76,984.07 and 19,725.13 is: 29,591.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,316.35 : 76,984.07 = 19,725.13 : x
  2. Step 2: Convert to fraction form
    51,316.35/76,984.07 = 19,725.13/x
  3. Step 3: Cross multiply
    51,316.35x = 76,984.07 × 19,725.13
  4. Step 4: Simplify right side
    51,316.35x = 1,518,520,788.68
  5. Step 5: Solve for x
    x = 1,518,520,788.68/51,316.35
  6. Step 6: Final answer
    x = 29,591.36

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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.