Home / 61,742.35-85,160.26-40,192.40

Finding the Fourth Proportional to 61,742.35, 85,160.26 and 40,192.40

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Solution

The fourth proportional to 61,742.35, 85,160.26 and 40,192.40 is: 55,436.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,742.35 : 85,160.26 = 40,192.40 : x
  2. Step 2: Convert to fraction form
    61,742.35/85,160.26 = 40,192.40/x
  3. Step 3: Cross multiply
    61,742.35x = 85,160.26 × 40,192.40
  4. Step 4: Simplify right side
    61,742.35x = 3,422,795,497.17
  5. Step 5: Solve for x
    x = 3,422,795,497.17/61,742.35
  6. Step 6: Final answer
    x = 55,436.75

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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.