Home / 71,767.19-99,037.41-39,935.81

Finding the Fourth Proportional to 71,767.19, 99,037.41 and 39,935.81

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Solution

The fourth proportional to 71,767.19, 99,037.41 and 39,935.81 is: 55,110.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,767.19 : 99,037.41 = 39,935.81 : x
  2. Step 2: Convert to fraction form
    71,767.19/99,037.41 = 39,935.81/x
  3. Step 3: Cross multiply
    71,767.19x = 99,037.41 × 39,935.81
  4. Step 4: Simplify right side
    71,767.19x = 3,955,139,188.65
  5. Step 5: Solve for x
    x = 3,955,139,188.65/71,767.19
  6. Step 6: Final answer
    x = 55,110.69

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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.