Home / 51,830.40-77,755.20-16,771.20

Finding the Fourth Proportional to 51,830.40, 77,755.20 and 16,771.20

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Solution

The fourth proportional to 51,830.40, 77,755.20 and 16,771.20 is: 25,159.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,830.40 : 77,755.20 = 16,771.20 : x
  2. Step 2: Convert to fraction form
    51,830.40/77,755.20 = 16,771.20/x
  3. Step 3: Cross multiply
    51,830.40x = 77,755.20 × 16,771.20
  4. Step 4: Simplify right side
    51,830.40x = 1,304,048,010.24
  5. Step 5: Solve for x
    x = 1,304,048,010.24/51,830.40
  6. Step 6: Final answer
    x = 25,159.91

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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.