Home / 53,778.65-80,666.15-20,497.50

Finding the Fourth Proportional to 53,778.65, 80,666.15 and 20,497.50

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Solution

The fourth proportional to 53,778.65, 80,666.15 and 20,497.50 is: 30,745.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,778.65 : 80,666.15 = 20,497.50 : x
  2. Step 2: Convert to fraction form
    53,778.65/80,666.15 = 20,497.50/x
  3. Step 3: Cross multiply
    53,778.65x = 80,666.15 × 20,497.50
  4. Step 4: Simplify right side
    53,778.65x = 1,653,454,307.14
  5. Step 5: Solve for x
    x = 1,653,454,307.14/53,778.65
  6. Step 6: Final answer
    x = 30,745.56

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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.