Home / 40,878.11-61,317.05-11,295.90

Finding the Fourth Proportional to 40,878.11, 61,317.05 and 11,295.90

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Solution

The fourth proportional to 40,878.11, 61,317.05 and 11,295.90 is: 16,943.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,878.11 : 61,317.05 = 11,295.90 : x
  2. Step 2: Convert to fraction form
    40,878.11/61,317.05 = 11,295.90/x
  3. Step 3: Cross multiply
    40,878.11x = 61,317.05 × 11,295.90
  4. Step 4: Simplify right side
    40,878.11x = 692,631,208.62
  5. Step 5: Solve for x
    x = 692,631,208.62/40,878.11
  6. Step 6: Final answer
    x = 16,943.82

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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.