Home / 42,680.12-64,052.84-19,322.96

Finding the Fourth Proportional to 42,680.12, 64,052.84 and 19,322.96

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Solution

The fourth proportional to 42,680.12, 64,052.84 and 19,322.96 is: 28,999.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,680.12 : 64,052.84 = 19,322.96 : x
  2. Step 2: Convert to fraction form
    42,680.12/64,052.84 = 19,322.96/x
  3. Step 3: Cross multiply
    42,680.12x = 64,052.84 × 19,322.96
  4. Step 4: Simplify right side
    42,680.12x = 1,237,690,193.25
  5. Step 5: Solve for x
    x = 1,237,690,193.25/42,680.12
  6. Step 6: Final answer
    x = 28,999.22

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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.