Home / 52,060.16-78,091.20-18,782.72

Finding the Fourth Proportional to 52,060.16, 78,091.20 and 18,782.72

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Solution

The fourth proportional to 52,060.16, 78,091.20 and 18,782.72 is: 28,174.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,060.16 : 78,091.20 = 18,782.72 : x
  2. Step 2: Convert to fraction form
    52,060.16/78,091.20 = 18,782.72/x
  3. Step 3: Cross multiply
    52,060.16x = 78,091.20 × 18,782.72
  4. Step 4: Simplify right side
    52,060.16x = 1,466,765,144.06
  5. Step 5: Solve for x
    x = 1,466,765,144.06/52,060.16
  6. Step 6: Final answer
    x = 28,174.43

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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.