Home / 61,724.56-85,100.34-50,382.40

Finding the Fourth Proportional to 61,724.56, 85,100.34 and 50,382.40

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Solution

The fourth proportional to 61,724.56, 85,100.34 and 50,382.40 is: 69,462.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,724.56 : 85,100.34 = 50,382.40 : x
  2. Step 2: Convert to fraction form
    61,724.56/85,100.34 = 50,382.40/x
  3. Step 3: Cross multiply
    61,724.56x = 85,100.34 × 50,382.40
  4. Step 4: Simplify right side
    61,724.56x = 4,287,559,370.02
  5. Step 5: Solve for x
    x = 4,287,559,370.02/61,724.56
  6. Step 6: Final answer
    x = 69,462.78

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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.