Home / 71,828.64-107,740.85-19,238.11

Finding the Fourth Proportional to 71,828.64, 107,740.85 and 19,238.11

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Solution

The fourth proportional to 71,828.64, 107,740.85 and 19,238.11 is: 28,856.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,828.64 : 107,740.85 = 19,238.11 : x
  2. Step 2: Convert to fraction form
    71,828.64/107,740.85 = 19,238.11/x
  3. Step 3: Cross multiply
    71,828.64x = 107,740.85 × 19,238.11
  4. Step 4: Simplify right side
    71,828.64x = 2,072,730,323.79
  5. Step 5: Solve for x
    x = 2,072,730,323.79/71,828.64
  6. Step 6: Final answer
    x = 28,856.60

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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.