Home / 85,965.36-128,933.28-22,786.08

Finding the Fourth Proportional to 85,965.36, 128,933.28 and 22,786.08

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Solution

The fourth proportional to 85,965.36, 128,933.28 and 22,786.08 is: 34,175.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,965.36 : 128,933.28 = 22,786.08 : x
  2. Step 2: Convert to fraction form
    85,965.36/128,933.28 = 22,786.08/x
  3. Step 3: Cross multiply
    85,965.36x = 128,933.28 × 22,786.08
  4. Step 4: Simplify right side
    85,965.36x = 2,937,884,032.74
  5. Step 5: Solve for x
    x = 2,937,884,032.74/85,965.36
  6. Step 6: Final answer
    x = 34,175.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.