Home / 72,257.25-99,715.01-40,433.64

Finding the Fourth Proportional to 72,257.25, 99,715.01 and 40,433.64

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Solution

The fourth proportional to 72,257.25, 99,715.01 and 40,433.64 is: 55,798.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,257.25 : 99,715.01 = 40,433.64 : x
  2. Step 2: Convert to fraction form
    72,257.25/99,715.01 = 40,433.64/x
  3. Step 3: Cross multiply
    72,257.25x = 99,715.01 × 40,433.64
  4. Step 4: Simplify right side
    72,257.25x = 4,031,840,816.94
  5. Step 5: Solve for x
    x = 4,031,840,816.94/72,257.25
  6. Step 6: Final answer
    x = 55,798.43

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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.