Home / 42,277.76-63,416.64-11,112.96

Finding the Fourth Proportional to 42,277.76, 63,416.64 and 11,112.96

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Solution

The fourth proportional to 42,277.76, 63,416.64 and 11,112.96 is: 16,669.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,277.76 : 63,416.64 = 11,112.96 : x
  2. Step 2: Convert to fraction form
    42,277.76/63,416.64 = 11,112.96/x
  3. Step 3: Cross multiply
    42,277.76x = 63,416.64 × 11,112.96
  4. Step 4: Simplify right side
    42,277.76x = 704,746,583.65
  5. Step 5: Solve for x
    x = 704,746,583.65/42,277.76
  6. Step 6: Final answer
    x = 16,669.44

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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.