Home / 77,720.31-116,563.01-30,336.57

Finding the Fourth Proportional to 77,720.31, 116,563.01 and 30,336.57

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Solution

The fourth proportional to 77,720.31, 116,563.01 and 30,336.57 is: 45,498.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,720.31 : 116,563.01 = 30,336.57 : x
  2. Step 2: Convert to fraction form
    77,720.31/116,563.01 = 30,336.57/x
  3. Step 3: Cross multiply
    77,720.31x = 116,563.01 × 30,336.57
  4. Step 4: Simplify right side
    77,720.31x = 3,536,121,760.59
  5. Step 5: Solve for x
    x = 3,536,121,760.59/77,720.31
  6. Step 6: Final answer
    x = 45,498.04

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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.