Home / 57,056.26-78,737.57-31,905.76

Finding the Fourth Proportional to 57,056.26, 78,737.57 and 31,905.76

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Solution

The fourth proportional to 57,056.26, 78,737.57 and 31,905.76 is: 44,029.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,056.26 : 78,737.57 = 31,905.76 : x
  2. Step 2: Convert to fraction form
    57,056.26/78,737.57 = 31,905.76/x
  3. Step 3: Cross multiply
    57,056.26x = 78,737.57 × 31,905.76
  4. Step 4: Simplify right side
    57,056.26x = 2,512,181,617.72
  5. Step 5: Solve for x
    x = 2,512,181,617.72/57,056.26
  6. Step 6: Final answer
    x = 44,029.91

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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.