Home / 51,236.87-70,706.75-28,575.89

Finding the Fourth Proportional to 51,236.87, 70,706.75 and 28,575.89

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Solution

The fourth proportional to 51,236.87, 70,706.75 and 28,575.89 is: 39,434.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,236.87 : 70,706.75 = 28,575.89 : x
  2. Step 2: Convert to fraction form
    51,236.87/70,706.75 = 28,575.89/x
  3. Step 3: Cross multiply
    51,236.87x = 70,706.75 × 28,575.89
  4. Step 4: Simplify right side
    51,236.87x = 2,020,508,310.26
  5. Step 5: Solve for x
    x = 2,020,508,310.26/51,236.87
  6. Step 6: Final answer
    x = 39,434.66

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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.