Home / 56,775.54-85,207.05-45,709.34

Finding the Fourth Proportional to 56,775.54, 85,207.05 and 45,709.34

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Solution

The fourth proportional to 56,775.54, 85,207.05 and 45,709.34 is: 68,599.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,775.54 : 85,207.05 = 45,709.34 : x
  2. Step 2: Convert to fraction form
    56,775.54/85,207.05 = 45,709.34/x
  3. Step 3: Cross multiply
    56,775.54x = 85,207.05 × 45,709.34
  4. Step 4: Simplify right side
    56,775.54x = 3,894,758,018.85
  5. Step 5: Solve for x
    x = 3,894,758,018.85/56,775.54
  6. Step 6: Final answer
    x = 68,599.22

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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.