Home / 55,825.20-83,762.10-28,123.20

Finding the Fourth Proportional to 55,825.20, 83,762.10 and 28,123.20

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Solution

The fourth proportional to 55,825.20, 83,762.10 and 28,123.20 is: 42,197.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,825.20 : 83,762.10 = 28,123.20 : x
  2. Step 2: Convert to fraction form
    55,825.20/83,762.10 = 28,123.20/x
  3. Step 3: Cross multiply
    55,825.20x = 83,762.10 × 28,123.20
  4. Step 4: Simplify right side
    55,825.20x = 2,355,658,290.72
  5. Step 5: Solve for x
    x = 2,355,658,290.72/55,825.20
  6. Step 6: Final answer
    x = 42,197.04

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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.