Home / 66,828.22-92,220.66-39,956.76

Finding the Fourth Proportional to 66,828.22, 92,220.66 and 39,956.76

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Solution

The fourth proportional to 66,828.22, 92,220.66 and 39,956.76 is: 55,138.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,828.22 : 92,220.66 = 39,956.76 : x
  2. Step 2: Convert to fraction form
    66,828.22/92,220.66 = 39,956.76/x
  3. Step 3: Cross multiply
    66,828.22x = 92,220.66 × 39,956.76
  4. Step 4: Simplify right side
    66,828.22x = 3,684,838,778.66
  5. Step 5: Solve for x
    x = 3,684,838,778.66/66,828.22
  6. Step 6: Final answer
    x = 55,138.96

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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.