Home / 72,772.59-100,439.97-45,561.33

Finding the Fourth Proportional to 72,772.59, 100,439.97 and 45,561.33

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Solution

The fourth proportional to 72,772.59, 100,439.97 and 45,561.33 is: 62,883.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,772.59 : 100,439.97 = 45,561.33 : x
  2. Step 2: Convert to fraction form
    72,772.59/100,439.97 = 45,561.33/x
  3. Step 3: Cross multiply
    72,772.59x = 100,439.97 × 45,561.33
  4. Step 4: Simplify right side
    72,772.59x = 4,576,178,618.36
  5. Step 5: Solve for x
    x = 4,576,178,618.36/72,772.59
  6. Step 6: Final answer
    x = 62,883.27

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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.