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Finding the Fourth Proportional to 51,101.20, 76,651.80 and 17,810.20

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Solution

The fourth proportional to 51,101.20, 76,651.80 and 17,810.20 is: 26,715.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,101.20 : 76,651.80 = 17,810.20 : x
  2. Step 2: Convert to fraction form
    51,101.20/76,651.80 = 17,810.20/x
  3. Step 3: Cross multiply
    51,101.20x = 76,651.80 × 17,810.20
  4. Step 4: Simplify right side
    51,101.20x = 1,365,183,888.36
  5. Step 5: Solve for x
    x = 1,365,183,888.36/51,101.20
  6. Step 6: Final answer
    x = 26,715.30

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1.5x scale

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.