Home / 72,816.28-100,480.07-40,548.46

Finding the Fourth Proportional to 72,816.28, 100,480.07 and 40,548.46

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Solution

The fourth proportional to 72,816.28, 100,480.07 and 40,548.46 is: 55,953.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,816.28 : 100,480.07 = 40,548.46 : x
  2. Step 2: Convert to fraction form
    72,816.28/100,480.07 = 40,548.46/x
  3. Step 3: Cross multiply
    72,816.28x = 100,480.07 × 40,548.46
  4. Step 4: Simplify right side
    72,816.28x = 4,074,312,504.64
  5. Step 5: Solve for x
    x = 4,074,312,504.64/72,816.28
  6. Step 6: Final answer
    x = 55,953.32

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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.