Home / 91,900.20-126,842.04-56,082.54

Finding the Fourth Proportional to 91,900.20, 126,842.04 and 56,082.54

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Solution

The fourth proportional to 91,900.20, 126,842.04 and 56,082.54 is: 77,405.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,900.20 : 126,842.04 = 56,082.54 : x
  2. Step 2: Convert to fraction form
    91,900.20/126,842.04 = 56,082.54/x
  3. Step 3: Cross multiply
    91,900.20x = 126,842.04 × 56,082.54
  4. Step 4: Simplify right side
    91,900.20x = 7,113,623,781.98
  5. Step 5: Solve for x
    x = 7,113,623,781.98/91,900.20
  6. Step 6: Final answer
    x = 77,405.97

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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.