Home / 89,020.60-122,861.42-51,287.48

Finding the Fourth Proportional to 89,020.60, 122,861.42 and 51,287.48

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Solution

The fourth proportional to 89,020.60, 122,861.42 and 51,287.48 is: 70,784.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,020.60 : 122,861.42 = 51,287.48 : x
  2. Step 2: Convert to fraction form
    89,020.60/122,861.42 = 51,287.48/x
  3. Step 3: Cross multiply
    89,020.60x = 122,861.42 × 51,287.48
  4. Step 4: Simplify right side
    89,020.60x = 6,301,252,621.02
  5. Step 5: Solve for x
    x = 6,301,252,621.02/89,020.60
  6. Step 6: Final answer
    x = 70,784.21

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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.