Home / 66,985.86-92,420.78-41,511

Finding the Fourth Proportional to 66,985.86, 92,420.78 and 41,511

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Solution

The fourth proportional to 66,985.86, 92,420.78 and 41,511 is: 57,272.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,985.86 : 92,420.78 = 41,511 : x
  2. Step 2: Convert to fraction form
    66,985.86/92,420.78 = 41,511/x
  3. Step 3: Cross multiply
    66,985.86x = 92,420.78 × 41,511
  4. Step 4: Simplify right side
    66,985.86x = 3,836,478,998.58
  5. Step 5: Solve for x
    x = 3,836,478,998.58/66,985.86
  6. Step 6: Final answer
    x = 57,272.97

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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.