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Finding the Fourth Proportional to 51,367.56, 70,890.03 and 28,706.59

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Solution

The fourth proportional to 51,367.56, 70,890.03 and 28,706.59 is: 39,616.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,367.56 : 70,890.03 = 28,706.59 : x
  2. Step 2: Convert to fraction form
    51,367.56/70,890.03 = 28,706.59/x
  3. Step 3: Cross multiply
    51,367.56x = 70,890.03 × 28,706.59
  4. Step 4: Simplify right side
    51,367.56x = 2,035,011,026.30
  5. Step 5: Solve for x
    x = 2,035,011,026.30/51,367.56
  6. Step 6: Final answer
    x = 39,616.66

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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.