Home / 51,172.62-70,623.39-28,515.30

Finding the Fourth Proportional to 51,172.62, 70,623.39 and 28,515.30

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Solution

The fourth proportional to 51,172.62, 70,623.39 and 28,515.30 is: 39,354.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,172.62 : 70,623.39 = 28,515.30 : x
  2. Step 2: Convert to fraction form
    51,172.62/70,623.39 = 28,515.30/x
  3. Step 3: Cross multiply
    51,172.62x = 70,623.39 × 28,515.30
  4. Step 4: Simplify right side
    51,172.62x = 2,013,847,152.87
  5. Step 5: Solve for x
    x = 2,013,847,152.87/51,172.62
  6. Step 6: Final answer
    x = 39,354.00

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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.