Home / 51,215.20-76,822.80-40,847.20

Finding the Fourth Proportional to 51,215.20, 76,822.80 and 40,847.20

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Solution

The fourth proportional to 51,215.20, 76,822.80 and 40,847.20 is: 61,270.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,215.20 : 76,822.80 = 40,847.20 : x
  2. Step 2: Convert to fraction form
    51,215.20/76,822.80 = 40,847.20/x
  3. Step 3: Cross multiply
    51,215.20x = 76,822.80 × 40,847.20
  4. Step 4: Simplify right side
    51,215.20x = 3,137,996,276.16
  5. Step 5: Solve for x
    x = 3,137,996,276.16/51,215.20
  6. Step 6: Final answer
    x = 61,270.80

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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.