Home / 68,420.24-94,420.36-40,126.48

Finding the Fourth Proportional to 68,420.24, 94,420.36 and 40,126.48

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Solution

The fourth proportional to 68,420.24, 94,420.36 and 40,126.48 is: 55,374.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,420.24 : 94,420.36 = 40,126.48 : x
  2. Step 2: Convert to fraction form
    68,420.24/94,420.36 = 40,126.48/x
  3. Step 3: Cross multiply
    68,420.24x = 94,420.36 × 40,126.48
  4. Step 4: Simplify right side
    68,420.24x = 3,788,756,687.13
  5. Step 5: Solve for x
    x = 3,788,756,687.13/68,420.24
  6. Step 6: Final answer
    x = 55,374.79

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1.5x scale

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.