Home / 86,485.27-129,777.11-56,917.03

Finding the Fourth Proportional to 86,485.27, 129,777.11 and 56,917.03

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Solution

The fourth proportional to 86,485.27, 129,777.11 and 56,917.03 is: 85,407.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,485.27 : 129,777.11 = 56,917.03 : x
  2. Step 2: Convert to fraction form
    86,485.27/129,777.11 = 56,917.03/x
  3. Step 3: Cross multiply
    86,485.27x = 129,777.11 × 56,917.03
  4. Step 4: Simplify right side
    86,485.27x = 7,386,527,663.18
  5. Step 5: Solve for x
    x = 7,386,527,663.18/86,485.27
  6. Step 6: Final answer
    x = 85,407.93

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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.