Home / 91,148.39-125,784.55-50,861.72

Finding the Fourth Proportional to 91,148.39, 125,784.55 and 50,861.72

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Solution

The fourth proportional to 91,148.39, 125,784.55 and 50,861.72 is: 70,189.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,148.39 : 125,784.55 = 50,861.72 : x
  2. Step 2: Convert to fraction form
    91,148.39/125,784.55 = 50,861.72/x
  3. Step 3: Cross multiply
    91,148.39x = 125,784.55 × 50,861.72
  4. Step 4: Simplify right side
    91,148.39x = 6,397,618,654.37
  5. Step 5: Solve for x
    x = 6,397,618,654.37/91,148.39
  6. Step 6: Final answer
    x = 70,189.05

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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.