Home / 91,091.85-125,706.93-50,808.21

Finding the Fourth Proportional to 91,091.85, 125,706.93 and 50,808.21

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Solution

The fourth proportional to 91,091.85, 125,706.93 and 50,808.21 is: 70,115.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,091.85 : 125,706.93 = 50,808.21 : x
  2. Step 2: Convert to fraction form
    91,091.85/125,706.93 = 50,808.21/x
  3. Step 3: Cross multiply
    91,091.85x = 125,706.93 × 50,808.21
  4. Step 4: Simplify right side
    91,091.85x = 6,386,944,097.90
  5. Step 5: Solve for x
    x = 6,386,944,097.90/91,091.85
  6. Step 6: Final answer
    x = 70,115.43

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1.5x scale

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.