Home / 68,440.08-94,424.40-40,126.08

Finding the Fourth Proportional to 68,440.08, 94,424.40 and 40,126.08

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Solution

The fourth proportional to 68,440.08, 94,424.40 and 40,126.08 is: 55,360.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,440.08 : 94,424.40 = 40,126.08 : x
  2. Step 2: Convert to fraction form
    68,440.08/94,424.40 = 40,126.08/x
  3. Step 3: Cross multiply
    68,440.08x = 94,424.40 × 40,126.08
  4. Step 4: Simplify right side
    68,440.08x = 3,788,881,028.35
  5. Step 5: Solve for x
    x = 3,788,881,028.35/68,440.08
  6. Step 6: Final answer
    x = 55,360.56

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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.