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Finding the Fourth Proportional to 51,995.80, 78,044.90 and 25,730.20

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Solution

The fourth proportional to 51,995.80, 78,044.90 and 25,730.20 is: 38,620.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,995.80 : 78,044.90 = 25,730.20 : x
  2. Step 2: Convert to fraction form
    51,995.80/78,044.90 = 25,730.20/x
  3. Step 3: Cross multiply
    51,995.80x = 78,044.90 × 25,730.20
  4. Step 4: Simplify right side
    51,995.80x = 2,008,110,885.98
  5. Step 5: Solve for x
    x = 2,008,110,885.98/51,995.80
  6. Step 6: Final answer
    x = 38,620.64

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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.