Home / 66,712.41-92,063.39-42,839.28

Finding the Fourth Proportional to 66,712.41, 92,063.39 and 42,839.28

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Solution

The fourth proportional to 66,712.41, 92,063.39 and 42,839.28 is: 59,118.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,712.41 : 92,063.39 = 42,839.28 : x
  2. Step 2: Convert to fraction form
    66,712.41/92,063.39 = 42,839.28/x
  3. Step 3: Cross multiply
    66,712.41x = 92,063.39 × 42,839.28
  4. Step 4: Simplify right side
    66,712.41x = 3,943,929,127.76
  5. Step 5: Solve for x
    x = 3,943,929,127.76/66,712.41
  6. Step 6: Final answer
    x = 59,118.37

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.