Home / 76,153.28-114,217.44-20,753.60

Finding the Fourth Proportional to 76,153.28, 114,217.44 and 20,753.60

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Solution

The fourth proportional to 76,153.28, 114,217.44 and 20,753.60 is: 31,127.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,153.28 : 114,217.44 = 20,753.60 : x
  2. Step 2: Convert to fraction form
    76,153.28/114,217.44 = 20,753.60/x
  3. Step 3: Cross multiply
    76,153.28x = 114,217.44 × 20,753.60
  4. Step 4: Simplify right side
    76,153.28x = 2,370,423,062.78
  5. Step 5: Solve for x
    x = 2,370,423,062.78/76,153.28
  6. Step 6: Final answer
    x = 31,127.00

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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.