Home / 51,435.90-77,160-18,149.08

Finding the Fourth Proportional to 51,435.90, 77,160 and 18,149.08

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Solution

The fourth proportional to 51,435.90, 77,160 and 18,149.08 is: 27,225.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,435.90 : 77,160 = 18,149.08 : x
  2. Step 2: Convert to fraction form
    51,435.90/77,160 = 18,149.08/x
  3. Step 3: Cross multiply
    51,435.90x = 77,160 × 18,149.08
  4. Step 4: Simplify right side
    51,435.90x = 1,400,383,012.80
  5. Step 5: Solve for x
    x = 1,400,383,012.80/51,435.90
  6. Step 6: Final answer
    x = 27,225.79

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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.