Home / 51,639.12-77,459.48-20,051.04

Finding the Fourth Proportional to 51,639.12, 77,459.48 and 20,051.04

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Solution

The fourth proportional to 51,639.12, 77,459.48 and 20,051.04 is: 30,076.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,639.12 : 77,459.48 = 20,051.04 : x
  2. Step 2: Convert to fraction form
    51,639.12/77,459.48 = 20,051.04/x
  3. Step 3: Cross multiply
    51,639.12x = 77,459.48 × 20,051.04
  4. Step 4: Simplify right side
    51,639.12x = 1,553,143,131.86
  5. Step 5: Solve for x
    x = 1,553,143,131.86/51,639.12
  6. Step 6: Final answer
    x = 30,076.87

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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.