Home / 68,607.84-94,687.20-40,316.16

Finding the Fourth Proportional to 68,607.84, 94,687.20 and 40,316.16

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Solution

The fourth proportional to 68,607.84, 94,687.20 and 40,316.16 is: 55,641.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,607.84 : 94,687.20 = 40,316.16 : x
  2. Step 2: Convert to fraction form
    68,607.84/94,687.20 = 40,316.16/x
  3. Step 3: Cross multiply
    68,607.84x = 94,687.20 × 40,316.16
  4. Step 4: Simplify right side
    68,607.84x = 3,817,424,305.15
  5. Step 5: Solve for x
    x = 3,817,424,305.15/68,607.84
  6. Step 6: Final answer
    x = 55,641.23

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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.