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Finding the Fourth Proportional to 85,751.54, 128,632.17 and 26,595.62

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Solution

The fourth proportional to 85,751.54, 128,632.17 and 26,595.62 is: 39,894.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,751.54 : 128,632.17 = 26,595.62 : x
  2. Step 2: Convert to fraction form
    85,751.54/128,632.17 = 26,595.62/x
  3. Step 3: Cross multiply
    85,751.54x = 128,632.17 × 26,595.62
  4. Step 4: Simplify right side
    85,751.54x = 3,421,052,313.10
  5. Step 5: Solve for x
    x = 3,421,052,313.10/85,751.54
  6. Step 6: Final answer
    x = 39,894.94

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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.