Home / 51,558.99-71,154.21-28,905.29

Finding the Fourth Proportional to 51,558.99, 71,154.21 and 28,905.29

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Solution

The fourth proportional to 51,558.99, 71,154.21 and 28,905.29 is: 39,890.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,558.99 : 71,154.21 = 28,905.29 : x
  2. Step 2: Convert to fraction form
    51,558.99/71,154.21 = 28,905.29/x
  3. Step 3: Cross multiply
    51,558.99x = 71,154.21 × 28,905.29
  4. Step 4: Simplify right side
    51,558.99x = 2,056,732,719.00
  5. Step 5: Solve for x
    x = 2,056,732,719.00/51,558.99
  6. Step 6: Final answer
    x = 39,890.87

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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.