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Finding the Fourth Proportional to 69,309.92, 103,463.56 and 60,902.40

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Solution

The fourth proportional to 69,309.92, 103,463.56 and 60,902.40 is: 90,913.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,309.92 : 103,463.56 = 60,902.40 : x
  2. Step 2: Convert to fraction form
    69,309.92/103,463.56 = 60,902.40/x
  3. Step 3: Cross multiply
    69,309.92x = 103,463.56 × 60,902.40
  4. Step 4: Simplify right side
    69,309.92x = 6,301,179,116.54
  5. Step 5: Solve for x
    x = 6,301,179,116.54/69,309.92
  6. Step 6: Final answer
    x = 90,913.09

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.