Home / 51,435.80-77,153.75-18,157.86

Finding the Fourth Proportional to 51,435.80, 77,153.75 and 18,157.86

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Solution

The fourth proportional to 51,435.80, 77,153.75 and 18,157.86 is: 27,236.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,435.80 : 77,153.75 = 18,157.86 : x
  2. Step 2: Convert to fraction form
    51,435.80/77,153.75 = 18,157.86/x
  3. Step 3: Cross multiply
    51,435.80x = 77,153.75 × 18,157.86
  4. Step 4: Simplify right side
    51,435.80x = 1,400,946,900.19
  5. Step 5: Solve for x
    x = 1,400,946,900.19/51,435.80
  6. Step 6: Final answer
    x = 27,236.81

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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.