Home / 85,552.40-128,346.92-25,585.52

Finding the Fourth Proportional to 85,552.40, 128,346.92 and 25,585.52

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Solution

The fourth proportional to 85,552.40, 128,346.92 and 25,585.52 is: 38,383.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,552.40 : 128,346.92 = 25,585.52 : x
  2. Step 2: Convert to fraction form
    85,552.40/128,346.92 = 25,585.52/x
  3. Step 3: Cross multiply
    85,552.40x = 128,346.92 × 25,585.52
  4. Step 4: Simplify right side
    85,552.40x = 3,283,822,688.60
  5. Step 5: Solve for x
    x = 3,283,822,688.60/85,552.40
  6. Step 6: Final answer
    x = 38,383.76

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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.