Home / 57,157.32-85,741.70-19,712.46

Finding the Fourth Proportional to 57,157.32, 85,741.70 and 19,712.46

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Solution

The fourth proportional to 57,157.32, 85,741.70 and 19,712.46 is: 29,570.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,157.32 : 85,741.70 = 19,712.46 : x
  2. Step 2: Convert to fraction form
    57,157.32/85,741.70 = 19,712.46/x
  3. Step 3: Cross multiply
    57,157.32x = 85,741.70 × 19,712.46
  4. Step 4: Simplify right side
    57,157.32x = 1,690,179,733.02
  5. Step 5: Solve for x
    x = 1,690,179,733.02/57,157.32
  6. Step 6: Final answer
    x = 29,570.66

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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.