Home / 52,083.20-78,124.90-18,826.74

Finding the Fourth Proportional to 52,083.20, 78,124.90 and 18,826.74

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Solution

The fourth proportional to 52,083.20, 78,124.90 and 18,826.74 is: 28,240.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,083.20 : 78,124.90 = 18,826.74 : x
  2. Step 2: Convert to fraction form
    52,083.20/78,124.90 = 18,826.74/x
  3. Step 3: Cross multiply
    52,083.20x = 78,124.90 × 18,826.74
  4. Step 4: Simplify right side
    52,083.20x = 1,470,837,179.83
  5. Step 5: Solve for x
    x = 1,470,837,179.83/52,083.20
  6. Step 6: Final answer
    x = 28,240.15

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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.