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Finding the Fourth Proportional to 61,212.81, 84,474.03 and 33,989.28

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Solution

The fourth proportional to 61,212.81, 84,474.03 and 33,989.28 is: 46,905.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,212.81 : 84,474.03 = 33,989.28 : x
  2. Step 2: Convert to fraction form
    61,212.81/84,474.03 = 33,989.28/x
  3. Step 3: Cross multiply
    61,212.81x = 84,474.03 × 33,989.28
  4. Step 4: Simplify right side
    61,212.81x = 2,871,211,269.08
  5. Step 5: Solve for x
    x = 2,871,211,269.08/61,212.81
  6. Step 6: Final answer
    x = 46,905.40

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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.