Home / 71,829.64-107,742.35-19,239.11

Finding the Fourth Proportional to 71,829.64, 107,742.35 and 19,239.11

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Solution

The fourth proportional to 71,829.64, 107,742.35 and 19,239.11 is: 28,858.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,829.64 : 107,742.35 = 19,239.11 : x
  2. Step 2: Convert to fraction form
    71,829.64/107,742.35 = 19,239.11/x
  3. Step 3: Cross multiply
    71,829.64x = 107,742.35 × 19,239.11
  4. Step 4: Simplify right side
    71,829.64x = 2,072,866,923.31
  5. Step 5: Solve for x
    x = 2,072,866,923.31/71,829.64
  6. Step 6: Final answer
    x = 28,858.10

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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.