Home / 66,031.92-91,123.28-35,816.70

Finding the Fourth Proportional to 66,031.92, 91,123.28 and 35,816.70

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Solution

The fourth proportional to 66,031.92, 91,123.28 and 35,816.70 is: 49,426.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,031.92 : 91,123.28 = 35,816.70 : x
  2. Step 2: Convert to fraction form
    66,031.92/91,123.28 = 35,816.70/x
  3. Step 3: Cross multiply
    66,031.92x = 91,123.28 × 35,816.70
  4. Step 4: Simplify right side
    66,031.92x = 3,263,735,182.78
  5. Step 5: Solve for x
    x = 3,263,735,182.78/66,031.92
  6. Step 6: Final answer
    x = 49,426.63

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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.