Home / 51,756.90-77,651.76-18,476.25

Finding the Fourth Proportional to 51,756.90, 77,651.76 and 18,476.25

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Solution

The fourth proportional to 51,756.90, 77,651.76 and 18,476.25 is: 27,720.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,756.90 : 77,651.76 = 18,476.25 : x
  2. Step 2: Convert to fraction form
    51,756.90/77,651.76 = 18,476.25/x
  3. Step 3: Cross multiply
    51,756.90x = 77,651.76 × 18,476.25
  4. Step 4: Simplify right side
    51,756.90x = 1,434,713,238.32
  5. Step 5: Solve for x
    x = 1,434,713,238.32/51,756.90
  6. Step 6: Final answer
    x = 27,720.23

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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.