Home / 49,855.29-74,782.32-12,415.67

Finding the Fourth Proportional to 49,855.29, 74,782.32 and 12,415.67

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Solution

The fourth proportional to 49,855.29, 74,782.32 and 12,415.67 is: 18,623.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,855.29 : 74,782.32 = 12,415.67 : x
  2. Step 2: Convert to fraction form
    49,855.29/74,782.32 = 12,415.67/x
  3. Step 3: Cross multiply
    49,855.29x = 74,782.32 × 12,415.67
  4. Step 4: Simplify right side
    49,855.29x = 928,472,606.95
  5. Step 5: Solve for x
    x = 928,472,606.95/49,855.29
  6. Step 6: Final answer
    x = 18,623.35

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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.