Home / 68,729.02-103,109.69-21,341.72

Finding the Fourth Proportional to 68,729.02, 103,109.69 and 21,341.72

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Solution

The fourth proportional to 68,729.02, 103,109.69 and 21,341.72 is: 32,017.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,729.02 : 103,109.69 = 21,341.72 : x
  2. Step 2: Convert to fraction form
    68,729.02/103,109.69 = 21,341.72/x
  3. Step 3: Cross multiply
    68,729.02x = 103,109.69 × 21,341.72
  4. Step 4: Simplify right side
    68,729.02x = 2,200,538,444.40
  5. Step 5: Solve for x
    x = 2,200,538,444.40/68,729.02
  6. Step 6: Final answer
    x = 32,017.60

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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.