Home / 77,964.80-116,946.15-18,800.00

Finding the Fourth Proportional to 77,964.80, 116,946.15 and 18,800.00

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Solution

The fourth proportional to 77,964.80, 116,946.15 and 18,800.00 is: 28,199.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,964.80 : 116,946.15 = 18,800.00 : x
  2. Step 2: Convert to fraction form
    77,964.80/116,946.15 = 18,800.00/x
  3. Step 3: Cross multiply
    77,964.80x = 116,946.15 × 18,800.00
  4. Step 4: Simplify right side
    77,964.80x = 2,198,587,035.27
  5. Step 5: Solve for x
    x = 2,198,587,035.27/77,964.80
  6. Step 6: Final answer
    x = 28,199.74

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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.