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Finding the Fourth Proportional to 89,365.89, 123,242.54 and 60,728.30

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Solution

The fourth proportional to 89,365.89, 123,242.54 and 60,728.30 is: 83,749.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,365.89 : 123,242.54 = 60,728.30 : x
  2. Step 2: Convert to fraction form
    89,365.89/123,242.54 = 60,728.30/x
  3. Step 3: Cross multiply
    89,365.89x = 123,242.54 × 60,728.30
  4. Step 4: Simplify right side
    89,365.89x = 7,484,309,022.03
  5. Step 5: Solve for x
    x = 7,484,309,022.03/89,365.89
  6. Step 6: Final answer
    x = 83,749.06

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1.5x scale

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.