Home / 57,381.31-79,181.16-31,886.05

Finding the Fourth Proportional to 57,381.31, 79,181.16 and 31,886.05

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Solution

The fourth proportional to 57,381.31, 79,181.16 and 31,886.05 is: 43,999.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,381.31 : 79,181.16 = 31,886.05 : x
  2. Step 2: Convert to fraction form
    57,381.31/79,181.16 = 31,886.05/x
  3. Step 3: Cross multiply
    57,381.31x = 79,181.16 × 31,886.05
  4. Step 4: Simplify right side
    57,381.31x = 2,524,774,624.77
  5. Step 5: Solve for x
    x = 2,524,774,624.77/57,381.31
  6. Step 6: Final answer
    x = 43,999.95

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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.