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Finding the Fourth Proportional to 91,518.68, 137,245.84 and 27,457.72

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Solution

The fourth proportional to 91,518.68, 137,245.84 and 27,457.72 is: 41,176.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,518.68 : 137,245.84 = 27,457.72 : x
  2. Step 2: Convert to fraction form
    91,518.68/137,245.84 = 27,457.72/x
  3. Step 3: Cross multiply
    91,518.68x = 137,245.84 × 27,457.72
  4. Step 4: Simplify right side
    91,518.68x = 3,768,457,845.88
  5. Step 5: Solve for x
    x = 3,768,457,845.88/91,518.68
  6. Step 6: Final answer
    x = 41,176.93

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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.