Home / 57,051.78-78,734.22-31,558.04

Finding the Fourth Proportional to 57,051.78, 78,734.22 and 31,558.04

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Solution

The fourth proportional to 57,051.78, 78,734.22 and 31,558.04 is: 43,551.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,051.78 : 78,734.22 = 31,558.04 : x
  2. Step 2: Convert to fraction form
    57,051.78/78,734.22 = 31,558.04/x
  3. Step 3: Cross multiply
    57,051.78x = 78,734.22 × 31,558.04
  4. Step 4: Simplify right side
    57,051.78x = 2,484,697,270.46
  5. Step 5: Solve for x
    x = 2,484,697,270.46/57,051.78
  6. Step 6: Final answer
    x = 43,551.62

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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.