Home / 85,933.32-128,747.40-35,903.28

Finding the Fourth Proportional to 85,933.32, 128,747.40 and 35,903.28

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Solution

The fourth proportional to 85,933.32, 128,747.40 and 35,903.28 is: 53,791.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,933.32 : 128,747.40 = 35,903.28 : x
  2. Step 2: Convert to fraction form
    85,933.32/128,747.40 = 35,903.28/x
  3. Step 3: Cross multiply
    85,933.32x = 128,747.40 × 35,903.28
  4. Step 4: Simplify right side
    85,933.32x = 4,622,453,951.47
  5. Step 5: Solve for x
    x = 4,622,453,951.47/85,933.32
  6. Step 6: Final answer
    x = 53,791.17

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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.