Home / 48,216.50-72,336.21-20,120.94

Finding the Fourth Proportional to 48,216.50, 72,336.21 and 20,120.94

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Solution

The fourth proportional to 48,216.50, 72,336.21 and 20,120.94 is: 30,186.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,216.50 : 72,336.21 = 20,120.94 : x
  2. Step 2: Convert to fraction form
    48,216.50/72,336.21 = 20,120.94/x
  3. Step 3: Cross multiply
    48,216.50x = 72,336.21 × 20,120.94
  4. Step 4: Simplify right side
    48,216.50x = 1,455,472,465.78
  5. Step 5: Solve for x
    x = 1,455,472,465.78/48,216.50
  6. Step 6: Final answer
    x = 30,186.19

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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.