Home / 42,680.16-63,968.40-30,203.85

Finding the Fourth Proportional to 42,680.16, 63,968.40 and 30,203.85

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Solution

The fourth proportional to 42,680.16, 63,968.40 and 30,203.85 is: 45,269.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,680.16 : 63,968.40 = 30,203.85 : x
  2. Step 2: Convert to fraction form
    42,680.16/63,968.40 = 30,203.85/x
  3. Step 3: Cross multiply
    42,680.16x = 63,968.40 × 30,203.85
  4. Step 4: Simplify right side
    42,680.16x = 1,932,091,958.34
  5. Step 5: Solve for x
    x = 1,932,091,958.34/42,680.16
  6. Step 6: Final answer
    x = 45,269.09

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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.