Home / 68,428.04-94,410.06-39,742.17

Finding the Fourth Proportional to 68,428.04, 94,410.06 and 39,742.17

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Solution

The fourth proportional to 68,428.04, 94,410.06 and 39,742.17 is: 54,832.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,428.04 : 94,410.06 = 39,742.17 : x
  2. Step 2: Convert to fraction form
    68,428.04/94,410.06 = 39,742.17/x
  3. Step 3: Cross multiply
    68,428.04x = 94,410.06 × 39,742.17
  4. Step 4: Simplify right side
    68,428.04x = 3,752,060,654.23
  5. Step 5: Solve for x
    x = 3,752,060,654.23/68,428.04
  6. Step 6: Final answer
    x = 54,832.21

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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.