Home / 68,640.24-94,690.08-43,178.16

Finding the Fourth Proportional to 68,640.24, 94,690.08 and 43,178.16

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Solution

The fourth proportional to 68,640.24, 94,690.08 and 43,178.16 is: 59,564.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,640.24 : 94,690.08 = 43,178.16 : x
  2. Step 2: Convert to fraction form
    68,640.24/94,690.08 = 43,178.16/x
  3. Step 3: Cross multiply
    68,640.24x = 94,690.08 × 43,178.16
  4. Step 4: Simplify right side
    68,640.24x = 4,088,543,424.65
  5. Step 5: Solve for x
    x = 4,088,543,424.65/68,640.24
  6. Step 6: Final answer
    x = 59,564.82

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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.