Home / 68,663.04-103,005.72-21,267.06

Finding the Fourth Proportional to 68,663.04, 103,005.72 and 21,267.06

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Solution

The fourth proportional to 68,663.04, 103,005.72 and 21,267.06 is: 31,904.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,663.04 : 103,005.72 = 21,267.06 : x
  2. Step 2: Convert to fraction form
    68,663.04/103,005.72 = 21,267.06/x
  3. Step 3: Cross multiply
    68,663.04x = 103,005.72 × 21,267.06
  4. Step 4: Simplify right side
    68,663.04x = 2,190,628,827.58
  5. Step 5: Solve for x
    x = 2,190,628,827.58/68,663.04
  6. Step 6: Final answer
    x = 31,904.05

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.