Home / 91,042.68-125,639.40-50,758.96

Finding the Fourth Proportional to 91,042.68, 125,639.40 and 50,758.96

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Solution

The fourth proportional to 91,042.68, 125,639.40 and 50,758.96 is: 70,047.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,042.68 : 125,639.40 = 50,758.96 : x
  2. Step 2: Convert to fraction form
    91,042.68/125,639.40 = 50,758.96/x
  3. Step 3: Cross multiply
    91,042.68x = 125,639.40 × 50,758.96
  4. Step 4: Simplify right side
    91,042.68x = 6,377,325,279.02
  5. Step 5: Solve for x
    x = 6,377,325,279.02/91,042.68
  6. Step 6: Final answer
    x = 70,047.64

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.