Home / 85,936.32-128,911.40-32,653.81

Finding the Fourth Proportional to 85,936.32, 128,911.40 and 32,653.81

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Solution

The fourth proportional to 85,936.32, 128,911.40 and 32,653.81 is: 48,983.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,936.32 : 128,911.40 = 32,653.81 : x
  2. Step 2: Convert to fraction form
    85,936.32/128,911.40 = 32,653.81/x
  3. Step 3: Cross multiply
    85,936.32x = 128,911.40 × 32,653.81
  4. Step 4: Simplify right side
    85,936.32x = 4,209,448,482.76
  5. Step 5: Solve for x
    x = 4,209,448,482.76/85,936.32
  6. Step 6: Final answer
    x = 48,983.35

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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.