Home / 89,336.34-133,989.93-30,170.70

Finding the Fourth Proportional to 89,336.34, 133,989.93 and 30,170.70

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Solution

The fourth proportional to 89,336.34, 133,989.93 and 30,170.70 is: 45,251.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,336.34 : 133,989.93 = 30,170.70 : x
  2. Step 2: Convert to fraction form
    89,336.34/133,989.93 = 30,170.70/x
  3. Step 3: Cross multiply
    89,336.34x = 133,989.93 × 30,170.70
  4. Step 4: Simplify right side
    89,336.34x = 4,042,569,981.05
  5. Step 5: Solve for x
    x = 4,042,569,981.05/89,336.34
  6. Step 6: Final answer
    x = 45,251.13

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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.