Home / 51,180.95-76,782.65-15,645.21

Finding the Fourth Proportional to 51,180.95, 76,782.65 and 15,645.21

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Solution

The fourth proportional to 51,180.95, 76,782.65 and 15,645.21 is: 23,471.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,180.95 : 76,782.65 = 15,645.21 : x
  2. Step 2: Convert to fraction form
    51,180.95/76,782.65 = 15,645.21/x
  3. Step 3: Cross multiply
    51,180.95x = 76,782.65 × 15,645.21
  4. Step 4: Simplify right side
    51,180.95x = 1,201,280,605.38
  5. Step 5: Solve for x
    x = 1,201,280,605.38/51,180.95
  6. Step 6: Final answer
    x = 23,471.25

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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.