Home / 57,035.48-78,710.63-31,542.62

Finding the Fourth Proportional to 57,035.48, 78,710.63 and 31,542.62

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Solution

The fourth proportional to 57,035.48, 78,710.63 and 31,542.62 is: 43,529.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,035.48 : 78,710.63 = 31,542.62 : x
  2. Step 2: Convert to fraction form
    57,035.48/78,710.63 = 31,542.62/x
  3. Step 3: Cross multiply
    57,035.48x = 78,710.63 × 31,542.62
  4. Step 4: Simplify right side
    57,035.48x = 2,482,738,940.78
  5. Step 5: Solve for x
    x = 2,482,738,940.78/57,035.48
  6. Step 6: Final answer
    x = 43,529.73

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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.