Home / 51,200.78-70,648.49-28,534.80

Finding the Fourth Proportional to 51,200.78, 70,648.49 and 28,534.80

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Solution

The fourth proportional to 51,200.78, 70,648.49 and 28,534.80 is: 39,373.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,200.78 : 70,648.49 = 28,534.80 : x
  2. Step 2: Convert to fraction form
    51,200.78/70,648.49 = 28,534.80/x
  3. Step 3: Cross multiply
    51,200.78x = 70,648.49 × 28,534.80
  4. Step 4: Simplify right side
    51,200.78x = 2,015,940,389.78
  5. Step 5: Solve for x
    x = 2,015,940,389.78/51,200.78
  6. Step 6: Final answer
    x = 39,373.24

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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.