Home / 81,056.70-121,527.45-36,704.70

Finding the Fourth Proportional to 81,056.70, 121,527.45 and 36,704.70

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Solution

The fourth proportional to 81,056.70, 121,527.45 and 36,704.70 is: 55,030.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,056.70 : 121,527.45 = 36,704.70 : x
  2. Step 2: Convert to fraction form
    81,056.70/121,527.45 = 36,704.70/x
  3. Step 3: Cross multiply
    81,056.70x = 121,527.45 × 36,704.70
  4. Step 4: Simplify right side
    81,056.70x = 4,460,628,594.02
  5. Step 5: Solve for x
    x = 4,460,628,594.02/81,056.70
  6. Step 6: Final answer
    x = 55,030.97

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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.