Home / 77,240.25-115,861.08-30,493.13

Finding the Fourth Proportional to 77,240.25, 115,861.08 and 30,493.13

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Solution

The fourth proportional to 77,240.25, 115,861.08 and 30,493.13 is: 45,739.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,240.25 : 115,861.08 = 30,493.13 : x
  2. Step 2: Convert to fraction form
    77,240.25/115,861.08 = 30,493.13/x
  3. Step 3: Cross multiply
    77,240.25x = 115,861.08 × 30,493.13
  4. Step 4: Simplify right side
    77,240.25x = 3,532,966,509.42
  5. Step 5: Solve for x
    x = 3,532,966,509.42/77,240.25
  6. Step 6: Final answer
    x = 45,739.97

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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.