Home / 51,207.89-70,671.10-28,242.20

Finding the Fourth Proportional to 51,207.89, 70,671.10 and 28,242.20

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Solution

The fourth proportional to 51,207.89, 70,671.10 and 28,242.20 is: 38,976.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,207.89 : 70,671.10 = 28,242.20 : x
  2. Step 2: Convert to fraction form
    51,207.89/70,671.10 = 28,242.20/x
  3. Step 3: Cross multiply
    51,207.89x = 70,671.10 × 28,242.20
  4. Step 4: Simplify right side
    51,207.89x = 1,995,907,380.30
  5. Step 5: Solve for x
    x = 1,995,907,380.30/51,207.89
  6. Step 6: Final answer
    x = 38,976.56

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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.