Home / 42,665.60-63,946.49-30,189.22

Finding the Fourth Proportional to 42,665.60, 63,946.49 and 30,189.22

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Solution

The fourth proportional to 42,665.60, 63,946.49 and 30,189.22 is: 45,247.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,665.60 : 63,946.49 = 30,189.22 : x
  2. Step 2: Convert to fraction form
    42,665.60/63,946.49 = 30,189.22/x
  3. Step 3: Cross multiply
    42,665.60x = 63,946.49 × 30,189.22
  4. Step 4: Simplify right side
    42,665.60x = 1,930,494,654.84
  5. Step 5: Solve for x
    x = 1,930,494,654.84/42,665.60
  6. Step 6: Final answer
    x = 45,247.10

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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.