Home / 91,091.79-125,707.34-50,808.16

Finding the Fourth Proportional to 91,091.79, 125,707.34 and 50,808.16

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Solution

The fourth proportional to 91,091.79, 125,707.34 and 50,808.16 is: 70,115.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,091.79 : 125,707.34 = 50,808.16 : x
  2. Step 2: Convert to fraction form
    91,091.79/125,707.34 = 50,808.16/x
  3. Step 3: Cross multiply
    91,091.79x = 125,707.34 × 50,808.16
  4. Step 4: Simplify right side
    91,091.79x = 6,386,958,928.05
  5. Step 5: Solve for x
    x = 6,386,958,928.05/91,091.79
  6. Step 6: Final answer
    x = 70,115.64

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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.