Home / 72,313.16-99,791.39-40,482.38

Finding the Fourth Proportional to 72,313.16, 99,791.39 and 40,482.38

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Solution

The fourth proportional to 72,313.16, 99,791.39 and 40,482.38 is: 55,865.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,313.16 : 99,791.39 = 40,482.38 : x
  2. Step 2: Convert to fraction form
    72,313.16/99,791.39 = 40,482.38/x
  3. Step 3: Cross multiply
    72,313.16x = 99,791.39 × 40,482.38
  4. Step 4: Simplify right side
    72,313.16x = 4,039,793,321.39
  5. Step 5: Solve for x
    x = 4,039,793,321.39/72,313.16
  6. Step 6: Final answer
    x = 55,865.26

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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.