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Finding the Fourth Proportional to 60,601.14, 90,918.99 and 20,628.90

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Solution

The fourth proportional to 60,601.14, 90,918.99 and 20,628.90 is: 30,949.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,601.14 : 90,918.99 = 20,628.90 : x
  2. Step 2: Convert to fraction form
    60,601.14/90,918.99 = 20,628.90/x
  3. Step 3: Cross multiply
    60,601.14x = 90,918.99 × 20,628.90
  4. Step 4: Simplify right side
    60,601.14x = 1,875,558,752.81
  5. Step 5: Solve for x
    x = 1,875,558,752.81/60,601.14
  6. Step 6: Final answer
    x = 30,949.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.