Home / 72,169.65-99,593.55-40,338.27

Finding the Fourth Proportional to 72,169.65, 99,593.55 and 40,338.27

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Solution

The fourth proportional to 72,169.65, 99,593.55 and 40,338.27 is: 55,666.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,169.65 : 99,593.55 = 40,338.27 : x
  2. Step 2: Convert to fraction form
    72,169.65/99,593.55 = 40,338.27/x
  3. Step 3: Cross multiply
    72,169.65x = 99,593.55 × 40,338.27
  4. Step 4: Simplify right side
    72,169.65x = 4,017,431,510.16
  5. Step 5: Solve for x
    x = 4,017,431,510.16/72,169.65
  6. Step 6: Final answer
    x = 55,666.50

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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.