Home / 74,725.24-112,089.40-30,321.64

Finding the Fourth Proportional to 74,725.24, 112,089.40 and 30,321.64

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Solution

The fourth proportional to 74,725.24, 112,089.40 and 30,321.64 is: 45,483.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,725.24 : 112,089.40 = 30,321.64 : x
  2. Step 2: Convert to fraction form
    74,725.24/112,089.40 = 30,321.64/x
  3. Step 3: Cross multiply
    74,725.24x = 112,089.40 × 30,321.64
  4. Step 4: Simplify right side
    74,725.24x = 3,398,734,434.62
  5. Step 5: Solve for x
    x = 3,398,734,434.62/74,725.24
  6. Step 6: Final answer
    x = 45,483.08

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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.