Home / 85,856.73-128,783.72-23,527.23

Finding the Fourth Proportional to 85,856.73, 128,783.72 and 23,527.23

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Solution

The fourth proportional to 85,856.73, 128,783.72 and 23,527.23 is: 35,290.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,856.73 : 128,783.72 = 23,527.23 : x
  2. Step 2: Convert to fraction form
    85,856.73/128,783.72 = 23,527.23/x
  3. Step 3: Cross multiply
    85,856.73x = 128,783.72 × 23,527.23
  4. Step 4: Simplify right side
    85,856.73x = 3,029,924,083.06
  5. Step 5: Solve for x
    x = 3,029,924,083.06/85,856.73
  6. Step 6: Final answer
    x = 35,290.47

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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.