Home / 43,821.70-65,732.55-42,072.10

Finding the Fourth Proportional to 43,821.70, 65,732.55 and 42,072.10

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Solution

The fourth proportional to 43,821.70, 65,732.55 and 42,072.10 is: 63,108.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,821.70 : 65,732.55 = 42,072.10 : x
  2. Step 2: Convert to fraction form
    43,821.70/65,732.55 = 42,072.10/x
  3. Step 3: Cross multiply
    43,821.70x = 65,732.55 × 42,072.10
  4. Step 4: Simplify right side
    43,821.70x = 2,765,506,416.86
  5. Step 5: Solve for x
    x = 2,765,506,416.86/43,821.70
  6. Step 6: Final answer
    x = 63,108.15

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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.