Home / 85,733.28-128,599.84-38,999.52

Finding the Fourth Proportional to 85,733.28, 128,599.84 and 38,999.52

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Solution

The fourth proportional to 85,733.28, 128,599.84 and 38,999.52 is: 58,499.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,733.28 : 128,599.84 = 38,999.52 : x
  2. Step 2: Convert to fraction form
    85,733.28/128,599.84 = 38,999.52/x
  3. Step 3: Cross multiply
    85,733.28x = 128,599.84 × 38,999.52
  4. Step 4: Simplify right side
    85,733.28x = 5,015,332,032.08
  5. Step 5: Solve for x
    x = 5,015,332,032.08/85,733.28
  6. Step 6: Final answer
    x = 58,499.24

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Similar ratio
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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.