Home / 51,303.38-76,966.00-20,138.63

Finding the Fourth Proportional to 51,303.38, 76,966.00 and 20,138.63

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Solution

The fourth proportional to 51,303.38, 76,966.00 and 20,138.63 is: 30,212.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,303.38 : 76,966.00 = 20,138.63 : x
  2. Step 2: Convert to fraction form
    51,303.38/76,966.00 = 20,138.63/x
  3. Step 3: Cross multiply
    51,303.38x = 76,966.00 × 20,138.63
  4. Step 4: Simplify right side
    51,303.38x = 1,549,989,361.40
  5. Step 5: Solve for x
    x = 1,549,989,361.40/51,303.38
  6. Step 6: Final answer
    x = 30,212.23

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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.