Home / 56,874.02-85,239.75-43,775.78

Finding the Fourth Proportional to 56,874.02, 85,239.75 and 43,775.78

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Solution

The fourth proportional to 56,874.02, 85,239.75 and 43,775.78 is: 65,608.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,874.02 : 85,239.75 = 43,775.78 : x
  2. Step 2: Convert to fraction form
    56,874.02/85,239.75 = 43,775.78/x
  3. Step 3: Cross multiply
    56,874.02x = 85,239.75 × 43,775.78
  4. Step 4: Simplify right side
    56,874.02x = 3,731,436,543.26
  5. Step 5: Solve for x
    x = 3,731,436,543.26/56,874.02
  6. Step 6: Final answer
    x = 65,608.81

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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.