Home / 51,988.20-77,982.30-39,700.20

Finding the Fourth Proportional to 51,988.20, 77,982.30 and 39,700.20

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Solution

The fourth proportional to 51,988.20, 77,982.30 and 39,700.20 is: 59,550.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,988.20 : 77,982.30 = 39,700.20 : x
  2. Step 2: Convert to fraction form
    51,988.20/77,982.30 = 39,700.20/x
  3. Step 3: Cross multiply
    51,988.20x = 77,982.30 × 39,700.20
  4. Step 4: Simplify right side
    51,988.20x = 3,095,912,906.46
  5. Step 5: Solve for x
    x = 3,095,912,906.46/51,988.20
  6. Step 6: Final answer
    x = 59,550.30

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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.