Home / 42,276.84-63,418.86-11,112

Finding the Fourth Proportional to 42,276.84, 63,418.86 and 11,112

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Solution

The fourth proportional to 42,276.84, 63,418.86 and 11,112 is: 16,668.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,276.84 : 63,418.86 = 11,112 : x
  2. Step 2: Convert to fraction form
    42,276.84/63,418.86 = 11,112/x
  3. Step 3: Cross multiply
    42,276.84x = 63,418.86 × 11,112
  4. Step 4: Simplify right side
    42,276.84x = 704,710,372.32
  5. Step 5: Solve for x
    x = 704,710,372.32/42,276.84
  6. Step 6: Final answer
    x = 16,668.95

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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.