Home / 56,254.10-84,390.60-16,815.20

Finding the Fourth Proportional to 56,254.10, 84,390.60 and 16,815.20

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Solution

The fourth proportional to 56,254.10, 84,390.60 and 16,815.20 is: 25,225.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,254.10 : 84,390.60 = 16,815.20 : x
  2. Step 2: Convert to fraction form
    56,254.10/84,390.60 = 16,815.20/x
  3. Step 3: Cross multiply
    56,254.10x = 84,390.60 × 16,815.20
  4. Step 4: Simplify right side
    56,254.10x = 1,419,044,817.12
  5. Step 5: Solve for x
    x = 1,419,044,817.12/56,254.10
  6. Step 6: Final answer
    x = 25,225.62

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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.