Home / 326,022.40-489,033.60-89,364.70

Finding the Fourth Proportional to 326,022.40, 489,033.60 and 89,364.70

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Solution

The fourth proportional to 326,022.40, 489,033.60 and 89,364.70 is: 134,047.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,022.40 : 489,033.60 = 89,364.70 : x
  2. Step 2: Convert to fraction form
    326,022.40/489,033.60 = 89,364.70/x
  3. Step 3: Cross multiply
    326,022.40x = 489,033.60 × 89,364.70
  4. Step 4: Simplify right side
    326,022.40x = 43,702,340,953.92
  5. Step 5: Solve for x
    x = 43,702,340,953.92/326,022.40
  6. Step 6: Final answer
    x = 134,047.05

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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.