Home / 207,579.76-311,369.85-57,820.36

Finding the Fourth Proportional to 207,579.76, 311,369.85 and 57,820.36

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Solution

The fourth proportional to 207,579.76, 311,369.85 and 57,820.36 is: 86,730.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,579.76 : 311,369.85 = 57,820.36 : x
  2. Step 2: Convert to fraction form
    207,579.76/311,369.85 = 57,820.36/x
  3. Step 3: Cross multiply
    207,579.76x = 311,369.85 × 57,820.36
  4. Step 4: Simplify right side
    207,579.76x = 18,003,516,820.15
  5. Step 5: Solve for x
    x = 18,003,516,820.15/207,579.76
  6. Step 6: Final answer
    x = 86,730.60

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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.