Home / 45,154.63-67,755.15-21,489.01

Finding the Fourth Proportional to 45,154.63, 67,755.15 and 21,489.01

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Solution

The fourth proportional to 45,154.63, 67,755.15 and 21,489.01 is: 32,244.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,154.63 : 67,755.15 = 21,489.01 : x
  2. Step 2: Convert to fraction form
    45,154.63/67,755.15 = 21,489.01/x
  3. Step 3: Cross multiply
    45,154.63x = 67,755.15 × 21,489.01
  4. Step 4: Simplify right side
    45,154.63x = 1,455,991,095.90
  5. Step 5: Solve for x
    x = 1,455,991,095.90/45,154.63
  6. Step 6: Final answer
    x = 32,244.56

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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.