Home / 72,268.68-99,732.90-40,436.84

Finding the Fourth Proportional to 72,268.68, 99,732.90 and 40,436.84

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Solution

The fourth proportional to 72,268.68, 99,732.90 and 40,436.84 is: 55,804.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,268.68 : 99,732.90 = 40,436.84 : x
  2. Step 2: Convert to fraction form
    72,268.68/99,732.90 = 40,436.84/x
  3. Step 3: Cross multiply
    72,268.68x = 99,732.90 × 40,436.84
  4. Step 4: Simplify right side
    72,268.68x = 4,032,883,320.04
  5. Step 5: Solve for x
    x = 4,032,883,320.04/72,268.68
  6. Step 6: Final answer
    x = 55,804.03

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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.