Home / 90,165.95-135,153.54-33,981.71

Finding the Fourth Proportional to 90,165.95, 135,153.54 and 33,981.71

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Solution

The fourth proportional to 90,165.95, 135,153.54 and 33,981.71 is: 50,936.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,165.95 : 135,153.54 = 33,981.71 : x
  2. Step 2: Convert to fraction form
    90,165.95/135,153.54 = 33,981.71/x
  3. Step 3: Cross multiply
    90,165.95x = 135,153.54 × 33,981.71
  4. Step 4: Simplify right side
    90,165.95x = 4,592,747,725.99
  5. Step 5: Solve for x
    x = 4,592,747,725.99/90,165.95
  6. Step 6: Final answer
    x = 50,936.61

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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.