Home / 57,718.08-79,652.19-31,876.56

Finding the Fourth Proportional to 57,718.08, 79,652.19 and 31,876.56

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Solution

The fourth proportional to 57,718.08, 79,652.19 and 31,876.56 is: 43,990.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,718.08 : 79,652.19 = 31,876.56 : x
  2. Step 2: Convert to fraction form
    57,718.08/79,652.19 = 31,876.56/x
  3. Step 3: Cross multiply
    57,718.08x = 79,652.19 × 31,876.56
  4. Step 4: Simplify right side
    57,718.08x = 2,539,037,813.67
  5. Step 5: Solve for x
    x = 2,539,037,813.67/57,718.08
  6. Step 6: Final answer
    x = 43,990.34

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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.