Home / 77,964.30-116,945.40-18,799.50

Finding the Fourth Proportional to 77,964.30, 116,945.40 and 18,799.50

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Solution

The fourth proportional to 77,964.30, 116,945.40 and 18,799.50 is: 28,199.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,964.30 : 116,945.40 = 18,799.50 : x
  2. Step 2: Convert to fraction form
    77,964.30/116,945.40 = 18,799.50/x
  3. Step 3: Cross multiply
    77,964.30x = 116,945.40 × 18,799.50
  4. Step 4: Simplify right side
    77,964.30x = 2,198,515,047.30
  5. Step 5: Solve for x
    x = 2,198,515,047.30/77,964.30
  6. Step 6: Final answer
    x = 28,199.00

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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.