Home / 76,421.50-114,623.37-20,265.48

Finding the Fourth Proportional to 76,421.50, 114,623.37 and 20,265.48

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Solution

The fourth proportional to 76,421.50, 114,623.37 and 20,265.48 is: 30,395.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,421.50 : 114,623.37 = 20,265.48 : x
  2. Step 2: Convert to fraction form
    76,421.50/114,623.37 = 20,265.48/x
  3. Step 3: Cross multiply
    76,421.50x = 114,623.37 × 20,265.48
  4. Step 4: Simplify right side
    76,421.50x = 2,322,897,612.27
  5. Step 5: Solve for x
    x = 2,322,897,612.27/76,421.50
  6. Step 6: Final answer
    x = 30,395.87

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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.