Home / 57,238.08-85,790.76-21,676.80

Finding the Fourth Proportional to 57,238.08, 85,790.76 and 21,676.80

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Solution

The fourth proportional to 57,238.08, 85,790.76 and 21,676.80 is: 32,490.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,238.08 : 85,790.76 = 21,676.80 : x
  2. Step 2: Convert to fraction form
    57,238.08/85,790.76 = 21,676.80/x
  3. Step 3: Cross multiply
    57,238.08x = 85,790.76 × 21,676.80
  4. Step 4: Simplify right side
    57,238.08x = 1,859,669,146.37
  5. Step 5: Solve for x
    x = 1,859,669,146.37/57,238.08
  6. Step 6: Final answer
    x = 32,490.07

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1.5x scale

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.