Home / 68,631.12-94,707.72-38,817.36

Finding the Fourth Proportional to 68,631.12, 94,707.72 and 38,817.36

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Solution

The fourth proportional to 68,631.12, 94,707.72 and 38,817.36 is: 53,566.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,631.12 : 94,707.72 = 38,817.36 : x
  2. Step 2: Convert to fraction form
    68,631.12/94,707.72 = 38,817.36/x
  3. Step 3: Cross multiply
    68,631.12x = 94,707.72 × 38,817.36
  4. Step 4: Simplify right side
    68,631.12x = 3,676,303,662.02
  5. Step 5: Solve for x
    x = 3,676,303,662.02/68,631.12
  6. Step 6: Final answer
    x = 53,566.13

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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.