Home / 57,273.95-79,038.48-31,780.42

Finding the Fourth Proportional to 57,273.95, 79,038.48 and 31,780.42

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Solution

The fourth proportional to 57,273.95, 79,038.48 and 31,780.42 is: 43,857.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,273.95 : 79,038.48 = 31,780.42 : x
  2. Step 2: Convert to fraction form
    57,273.95/79,038.48 = 31,780.42/x
  3. Step 3: Cross multiply
    57,273.95x = 79,038.48 × 31,780.42
  4. Step 4: Simplify right side
    57,273.95x = 2,511,876,012.14
  5. Step 5: Solve for x
    x = 2,511,876,012.14/57,273.95
  6. Step 6: Final answer
    x = 43,857.21

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1.5x scale

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.