Home / 51,964.20-77,946.30-45,205.80

Finding the Fourth Proportional to 51,964.20, 77,946.30 and 45,205.80

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Solution

The fourth proportional to 51,964.20, 77,946.30 and 45,205.80 is: 67,808.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,964.20 : 77,946.30 = 45,205.80 : x
  2. Step 2: Convert to fraction form
    51,964.20/77,946.30 = 45,205.80/x
  3. Step 3: Cross multiply
    51,964.20x = 77,946.30 × 45,205.80
  4. Step 4: Simplify right side
    51,964.20x = 3,523,624,848.54
  5. Step 5: Solve for x
    x = 3,523,624,848.54/51,964.20
  6. Step 6: Final answer
    x = 67,808.70

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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.