Home / 45,083.20-67,624.80-31,086.40

Finding the Fourth Proportional to 45,083.20, 67,624.80 and 31,086.40

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Solution

The fourth proportional to 45,083.20, 67,624.80 and 31,086.40 is: 46,629.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,083.20 : 67,624.80 = 31,086.40 : x
  2. Step 2: Convert to fraction form
    45,083.20/67,624.80 = 31,086.40/x
  3. Step 3: Cross multiply
    45,083.20x = 67,624.80 × 31,086.40
  4. Step 4: Simplify right side
    45,083.20x = 2,102,211,582.72
  5. Step 5: Solve for x
    x = 2,102,211,582.72/45,083.20
  6. Step 6: Final answer
    x = 46,629.60

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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.