Home / 89,934.12-134,970.30-33,815.70

Finding the Fourth Proportional to 89,934.12, 134,970.30 and 33,815.70

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Solution

The fourth proportional to 89,934.12, 134,970.30 and 33,815.70 is: 50,749.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,934.12 : 134,970.30 = 33,815.70 : x
  2. Step 2: Convert to fraction form
    89,934.12/134,970.30 = 33,815.70/x
  3. Step 3: Cross multiply
    89,934.12x = 134,970.30 × 33,815.70
  4. Step 4: Simplify right side
    89,934.12x = 4,564,115,173.71
  5. Step 5: Solve for x
    x = 4,564,115,173.71/89,934.12
  6. Step 6: Final answer
    x = 50,749.54

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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.