Home / 57,039.23-78,714.32-31,888.73

Finding the Fourth Proportional to 57,039.23, 78,714.32 and 31,888.73

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Solution

The fourth proportional to 57,039.23, 78,714.32 and 31,888.73 is: 44,006.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,039.23 : 78,714.32 = 31,888.73 : x
  2. Step 2: Convert to fraction form
    57,039.23/78,714.32 = 31,888.73/x
  3. Step 3: Cross multiply
    57,039.23x = 78,714.32 × 31,888.73
  4. Step 4: Simplify right side
    57,039.23x = 2,510,099,734.96
  5. Step 5: Solve for x
    x = 2,510,099,734.96/57,039.23
  6. Step 6: Final answer
    x = 44,006.55

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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.