Home / 76,151.28-114,214.44-20,751.60

Finding the Fourth Proportional to 76,151.28, 114,214.44 and 20,751.60

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Solution

The fourth proportional to 76,151.28, 114,214.44 and 20,751.60 is: 31,124.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,151.28 : 114,214.44 = 20,751.60 : x
  2. Step 2: Convert to fraction form
    76,151.28/114,214.44 = 20,751.60/x
  3. Step 3: Cross multiply
    76,151.28x = 114,214.44 × 20,751.60
  4. Step 4: Simplify right side
    76,151.28x = 2,370,132,373.10
  5. Step 5: Solve for x
    x = 2,370,132,373.10/76,151.28
  6. Step 6: Final answer
    x = 31,124.00

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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.