Home / 81,056.20-121,526.70-36,704.20

Finding the Fourth Proportional to 81,056.20, 121,526.70 and 36,704.20

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Solution

The fourth proportional to 81,056.20, 121,526.70 and 36,704.20 is: 55,030.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,056.20 : 121,526.70 = 36,704.20 : x
  2. Step 2: Convert to fraction form
    81,056.20/121,526.70 = 36,704.20/x
  3. Step 3: Cross multiply
    81,056.20x = 121,526.70 × 36,704.20
  4. Step 4: Simplify right side
    81,056.20x = 4,460,540,302.14
  5. Step 5: Solve for x
    x = 4,460,540,302.14/81,056.20
  6. Step 6: Final answer
    x = 55,030.22

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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.