Home / 77,240.75-115,861.84-30,493.63

Finding the Fourth Proportional to 77,240.75, 115,861.84 and 30,493.63

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Solution

The fourth proportional to 77,240.75, 115,861.84 and 30,493.63 is: 45,740.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,240.75 : 115,861.84 = 30,493.63 : x
  2. Step 2: Convert to fraction form
    77,240.75/115,861.84 = 30,493.63/x
  3. Step 3: Cross multiply
    77,240.75x = 115,861.84 × 30,493.63
  4. Step 4: Simplify right side
    77,240.75x = 3,533,047,348.30
  5. Step 5: Solve for x
    x = 3,533,047,348.30/77,240.75
  6. Step 6: Final answer
    x = 45,740.72

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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.