Home / 90,770.45-136,155.65-27,591.08

Finding the Fourth Proportional to 90,770.45, 136,155.65 and 27,591.08

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Solution

The fourth proportional to 90,770.45, 136,155.65 and 27,591.08 is: 41,386.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,770.45 : 136,155.65 = 27,591.08 : x
  2. Step 2: Convert to fraction form
    90,770.45/136,155.65 = 27,591.08/x
  3. Step 3: Cross multiply
    90,770.45x = 136,155.65 × 27,591.08
  4. Step 4: Simplify right side
    90,770.45x = 3,756,680,612.87
  5. Step 5: Solve for x
    x = 3,756,680,612.87/90,770.45
  6. Step 6: Final answer
    x = 41,386.61

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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.