Home / 57,050.06-78,729.57-31,899.56

Finding the Fourth Proportional to 57,050.06, 78,729.57 and 31,899.56

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Solution

The fourth proportional to 57,050.06, 78,729.57 and 31,899.56 is: 44,021.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,050.06 : 78,729.57 = 31,899.56 : x
  2. Step 2: Convert to fraction form
    57,050.06/78,729.57 = 31,899.56/x
  3. Step 3: Cross multiply
    57,050.06x = 78,729.57 × 31,899.56
  4. Step 4: Simplify right side
    57,050.06x = 2,511,438,248.34
  5. Step 5: Solve for x
    x = 2,511,438,248.34/57,050.06
  6. Step 6: Final answer
    x = 44,021.66

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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.