Home / 57,090.85-78,785.51-31,598.96

Finding the Fourth Proportional to 57,090.85, 78,785.51 and 31,598.96

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Solution

The fourth proportional to 57,090.85, 78,785.51 and 31,598.96 is: 43,606.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,090.85 : 78,785.51 = 31,598.96 : x
  2. Step 2: Convert to fraction form
    57,090.85/78,785.51 = 31,598.96/x
  3. Step 3: Cross multiply
    57,090.85x = 78,785.51 × 31,598.96
  4. Step 4: Simplify right side
    57,090.85x = 2,489,539,627.15
  5. Step 5: Solve for x
    x = 2,489,539,627.15/57,090.85
  6. Step 6: Final answer
    x = 43,606.63

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.