Home / 77,777.28-116,684.40-25,186.72

Finding the Fourth Proportional to 77,777.28, 116,684.40 and 25,186.72

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Solution

The fourth proportional to 77,777.28, 116,684.40 and 25,186.72 is: 37,786.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,777.28 : 116,684.40 = 25,186.72 : x
  2. Step 2: Convert to fraction form
    77,777.28/116,684.40 = 25,186.72/x
  3. Step 3: Cross multiply
    77,777.28x = 116,684.40 × 25,186.72
  4. Step 4: Simplify right side
    77,777.28x = 2,938,897,311.17
  5. Step 5: Solve for x
    x = 2,938,897,311.17/77,777.28
  6. Step 6: Final answer
    x = 37,786.06

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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.