Home / 80,013.78-120,059.52-53,666.46

Finding the Fourth Proportional to 80,013.78, 120,059.52 and 53,666.46

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Solution

The fourth proportional to 80,013.78, 120,059.52 and 53,666.46 is: 80,525.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,013.78 : 120,059.52 = 53,666.46 : x
  2. Step 2: Convert to fraction form
    80,013.78/120,059.52 = 53,666.46/x
  3. Step 3: Cross multiply
    80,013.78x = 120,059.52 × 53,666.46
  4. Step 4: Simplify right side
    80,013.78x = 6,443,169,427.70
  5. Step 5: Solve for x
    x = 6,443,169,427.70/80,013.78
  6. Step 6: Final answer
    x = 80,525.75

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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.