Home / 51,172.12-70,622.70-28,514.80

Finding the Fourth Proportional to 51,172.12, 70,622.70 and 28,514.80

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Solution

The fourth proportional to 51,172.12, 70,622.70 and 28,514.80 is: 39,353.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,172.12 : 70,622.70 = 28,514.80 : x
  2. Step 2: Convert to fraction form
    51,172.12/70,622.70 = 28,514.80/x
  3. Step 3: Cross multiply
    51,172.12x = 70,622.70 × 28,514.80
  4. Step 4: Simplify right side
    51,172.12x = 2,013,792,165.96
  5. Step 5: Solve for x
    x = 2,013,792,165.96/51,172.12
  6. Step 6: Final answer
    x = 39,353.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.