Home / 51,808.80-77,729.76-18,528.48

Finding the Fourth Proportional to 51,808.80, 77,729.76 and 18,528.48

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Solution

The fourth proportional to 51,808.80, 77,729.76 and 18,528.48 is: 27,798.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,808.80 : 77,729.76 = 18,528.48 : x
  2. Step 2: Convert to fraction form
    51,808.80/77,729.76 = 18,528.48/x
  3. Step 3: Cross multiply
    51,808.80x = 77,729.76 × 18,528.48
  4. Step 4: Simplify right side
    51,808.80x = 1,440,214,303.56
  5. Step 5: Solve for x
    x = 1,440,214,303.56/51,808.80
  6. Step 6: Final answer
    x = 27,798.64

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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.