Home / 61,688.31-85,273.34-55,039.83

Finding the Fourth Proportional to 61,688.31, 85,273.34 and 55,039.83

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Solution

The fourth proportional to 61,688.31, 85,273.34 and 55,039.83 is: 76,082.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,688.31 : 85,273.34 = 55,039.83 : x
  2. Step 2: Convert to fraction form
    61,688.31/85,273.34 = 55,039.83/x
  3. Step 3: Cross multiply
    61,688.31x = 85,273.34 × 55,039.83
  4. Step 4: Simplify right side
    61,688.31x = 4,693,429,861.93
  5. Step 5: Solve for x
    x = 4,693,429,861.93/61,688.31
  6. Step 6: Final answer
    x = 76,082.97

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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.