Home / 51,255.59-76,887.63-19,680.98

Finding the Fourth Proportional to 51,255.59, 76,887.63 and 19,680.98

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Solution

The fourth proportional to 51,255.59, 76,887.63 and 19,680.98 is: 29,523.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,255.59 : 76,887.63 = 19,680.98 : x
  2. Step 2: Convert to fraction form
    51,255.59/76,887.63 = 19,680.98/x
  3. Step 3: Cross multiply
    51,255.59x = 76,887.63 × 19,680.98
  4. Step 4: Simplify right side
    51,255.59x = 1,513,223,523.84
  5. Step 5: Solve for x
    x = 1,513,223,523.84/51,255.59
  6. Step 6: Final answer
    x = 29,523.10

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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.