Home / 68,465.09-94,464.55-40,165.31

Finding the Fourth Proportional to 68,465.09, 94,464.55 and 40,165.31

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Solution

The fourth proportional to 68,465.09, 94,464.55 and 40,165.31 is: 55,417.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,465.09 : 94,464.55 = 40,165.31 : x
  2. Step 2: Convert to fraction form
    68,465.09/94,464.55 = 40,165.31/x
  3. Step 3: Cross multiply
    68,465.09x = 94,464.55 × 40,165.31
  4. Step 4: Simplify right side
    68,465.09x = 3,794,197,934.76
  5. Step 5: Solve for x
    x = 3,794,197,934.76/68,465.09
  6. Step 6: Final answer
    x = 55,417.99

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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.