Home / 51,190.18-70,641.39-28,530.70

Finding the Fourth Proportional to 51,190.18, 70,641.39 and 28,530.70

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Solution

The fourth proportional to 51,190.18, 70,641.39 and 28,530.70 is: 39,371.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,190.18 : 70,641.39 = 28,530.70 : x
  2. Step 2: Convert to fraction form
    51,190.18/70,641.39 = 28,530.70/x
  3. Step 3: Cross multiply
    51,190.18x = 70,641.39 × 28,530.70
  4. Step 4: Simplify right side
    51,190.18x = 2,015,448,305.67
  5. Step 5: Solve for x
    x = 2,015,448,305.67/51,190.18
  6. Step 6: Final answer
    x = 39,371.78

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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.