Home / 68,871.02-103,292.92-18,938.24

Finding the Fourth Proportional to 68,871.02, 103,292.92 and 18,938.24

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Solution

The fourth proportional to 68,871.02, 103,292.92 and 18,938.24 is: 28,403.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,871.02 : 103,292.92 = 18,938.24 : x
  2. Step 2: Convert to fraction form
    68,871.02/103,292.92 = 18,938.24/x
  3. Step 3: Cross multiply
    68,871.02x = 103,292.92 × 18,938.24
  4. Step 4: Simplify right side
    68,871.02x = 1,956,186,109.26
  5. Step 5: Solve for x
    x = 1,956,186,109.26/68,871.02
  6. Step 6: Final answer
    x = 28,403.62

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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.