Home / 77,729.42-116,581.08-21,575.23

Finding the Fourth Proportional to 77,729.42, 116,581.08 and 21,575.23

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Solution

The fourth proportional to 77,729.42, 116,581.08 and 21,575.23 is: 32,359.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,729.42 : 116,581.08 = 21,575.23 : x
  2. Step 2: Convert to fraction form
    77,729.42/116,581.08 = 21,575.23/x
  3. Step 3: Cross multiply
    77,729.42x = 116,581.08 × 21,575.23
  4. Step 4: Simplify right side
    77,729.42x = 2,515,263,614.65
  5. Step 5: Solve for x
    x = 2,515,263,614.65/77,729.42
  6. Step 6: Final answer
    x = 32,359.22

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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.