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Finding the Fourth Proportional to 55,737.28, 83,605.60 and 13,617.60

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Solution

The fourth proportional to 55,737.28, 83,605.60 and 13,617.60 is: 20,426.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,737.28 : 83,605.60 = 13,617.60 : x
  2. Step 2: Convert to fraction form
    55,737.28/83,605.60 = 13,617.60/x
  3. Step 3: Cross multiply
    55,737.28x = 83,605.60 × 13,617.60
  4. Step 4: Simplify right side
    55,737.28x = 1,138,507,618.56
  5. Step 5: Solve for x
    x = 1,138,507,618.56/55,737.28
  6. Step 6: Final answer
    x = 20,426.32

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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.