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Finding the Fourth Proportional to 68,713.52, 94,843.32 and 40,428.32

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Solution

The fourth proportional to 68,713.52, 94,843.32 and 40,428.32 is: 55,802.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,713.52 : 94,843.32 = 40,428.32 : x
  2. Step 2: Convert to fraction form
    68,713.52/94,843.32 = 40,428.32/x
  3. Step 3: Cross multiply
    68,713.52x = 94,843.32 × 40,428.32
  4. Step 4: Simplify right side
    68,713.52x = 3,834,356,090.82
  5. Step 5: Solve for x
    x = 3,834,356,090.82/68,713.52
  6. Step 6: Final answer
    x = 55,802.06

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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.