Home / 85,533.03-128,262.41-32,905.57

Finding the Fourth Proportional to 85,533.03, 128,262.41 and 32,905.57

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Solution

The fourth proportional to 85,533.03, 128,262.41 and 32,905.57 is: 49,344.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,533.03 : 128,262.41 = 32,905.57 : x
  2. Step 2: Convert to fraction form
    85,533.03/128,262.41 = 32,905.57/x
  3. Step 3: Cross multiply
    85,533.03x = 128,262.41 × 32,905.57
  4. Step 4: Simplify right side
    85,533.03x = 4,220,547,710.62
  5. Step 5: Solve for x
    x = 4,220,547,710.62/85,533.03
  6. Step 6: Final answer
    x = 49,344.07

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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.