Home / 51,961.60-71,706.78-28,088.32

Finding the Fourth Proportional to 51,961.60, 71,706.78 and 28,088.32

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Solution

The fourth proportional to 51,961.60, 71,706.78 and 28,088.32 is: 38,761.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,961.60 : 71,706.78 = 28,088.32 : x
  2. Step 2: Convert to fraction form
    51,961.60/71,706.78 = 28,088.32/x
  3. Step 3: Cross multiply
    51,961.60x = 71,706.78 × 28,088.32
  4. Step 4: Simplify right side
    51,961.60x = 2,014,122,982.81
  5. Step 5: Solve for x
    x = 2,014,122,982.81/51,961.60
  6. Step 6: Final answer
    x = 38,761.76

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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.