Home / 51,387.78-77,094.60-14,451.78

Finding the Fourth Proportional to 51,387.78, 77,094.60 and 14,451.78

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Solution

The fourth proportional to 51,387.78, 77,094.60 and 14,451.78 is: 21,681.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,387.78 : 77,094.60 = 14,451.78 : x
  2. Step 2: Convert to fraction form
    51,387.78/77,094.60 = 14,451.78/x
  3. Step 3: Cross multiply
    51,387.78x = 77,094.60 × 14,451.78
  4. Step 4: Simplify right side
    51,387.78x = 1,114,154,198.39
  5. Step 5: Solve for x
    x = 1,114,154,198.39/51,387.78
  6. Step 6: Final answer
    x = 21,681.31

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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.