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Finding the Fourth Proportional to 77,882.40, 116,780.40 and 33,501.60

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Solution

The fourth proportional to 77,882.40, 116,780.40 and 33,501.60 is: 50,233.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,882.40 : 116,780.40 = 33,501.60 : x
  2. Step 2: Convert to fraction form
    77,882.40/116,780.40 = 33,501.60/x
  3. Step 3: Cross multiply
    77,882.40x = 116,780.40 × 33,501.60
  4. Step 4: Simplify right side
    77,882.40x = 3,912,330,248.64
  5. Step 5: Solve for x
    x = 3,912,330,248.64/77,882.40
  6. Step 6: Final answer
    x = 50,233.82

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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.