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Finding the Fourth Proportional to 55,463.70, 83,201.67 and 20,403.30

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Solution

The fourth proportional to 55,463.70, 83,201.67 and 20,403.30 is: 30,607.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,463.70 : 83,201.67 = 20,403.30 : x
  2. Step 2: Convert to fraction form
    55,463.70/83,201.67 = 20,403.30/x
  3. Step 3: Cross multiply
    55,463.70x = 83,201.67 × 20,403.30
  4. Step 4: Simplify right side
    55,463.70x = 1,697,588,633.51
  5. Step 5: Solve for x
    x = 1,697,588,633.51/55,463.70
  6. Step 6: Final answer
    x = 30,607.20

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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.