Home / 53,579.21-80,360.87-14,139.09

Finding the Fourth Proportional to 53,579.21, 80,360.87 and 14,139.09

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Solution

The fourth proportional to 53,579.21, 80,360.87 and 14,139.09 is: 21,206.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,579.21 : 80,360.87 = 14,139.09 : x
  2. Step 2: Convert to fraction form
    53,579.21/80,360.87 = 14,139.09/x
  3. Step 3: Cross multiply
    53,579.21x = 80,360.87 × 14,139.09
  4. Step 4: Simplify right side
    53,579.21x = 1,136,229,502.71
  5. Step 5: Solve for x
    x = 1,136,229,502.71/53,579.21
  6. Step 6: Final answer
    x = 21,206.54

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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.