Home / 77,988.28-116,998.20-25,383.64

Finding the Fourth Proportional to 77,988.28, 116,998.20 and 25,383.64

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Solution

The fourth proportional to 77,988.28, 116,998.20 and 25,383.64 is: 38,080.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,988.28 : 116,998.20 = 25,383.64 : x
  2. Step 2: Convert to fraction form
    77,988.28/116,998.20 = 25,383.64/x
  3. Step 3: Cross multiply
    77,988.28x = 116,998.20 × 25,383.64
  4. Step 4: Simplify right side
    77,988.28x = 2,969,840,189.45
  5. Step 5: Solve for x
    x = 2,969,840,189.45/77,988.28
  6. Step 6: Final answer
    x = 38,080.60

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1.5x scale

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.