Home / 90,629.46-125,033.76-66,812.76

Finding the Fourth Proportional to 90,629.46, 125,033.76 and 66,812.76

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Solution

The fourth proportional to 90,629.46, 125,033.76 and 66,812.76 is: 92,175.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,629.46 : 125,033.76 = 66,812.76 : x
  2. Step 2: Convert to fraction form
    90,629.46/125,033.76 = 66,812.76/x
  3. Step 3: Cross multiply
    90,629.46x = 125,033.76 × 66,812.76
  4. Step 4: Simplify right side
    90,629.46x = 8,353,850,598.78
  5. Step 5: Solve for x
    x = 8,353,850,598.78/90,629.46
  6. Step 6: Final answer
    x = 92,175.88

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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.