Home / 57,931.84-86,761.44-28,256.56

Finding the Fourth Proportional to 57,931.84, 86,761.44 and 28,256.56

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Solution

The fourth proportional to 57,931.84, 86,761.44 and 28,256.56 is: 42,318.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,931.84 : 86,761.44 = 28,256.56 : x
  2. Step 2: Convert to fraction form
    57,931.84/86,761.44 = 28,256.56/x
  3. Step 3: Cross multiply
    57,931.84x = 86,761.44 × 28,256.56
  4. Step 4: Simplify right side
    57,931.84x = 2,451,579,835.05
  5. Step 5: Solve for x
    x = 2,451,579,835.05/57,931.84
  6. Step 6: Final answer
    x = 42,318.35

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.