Home / 85,011.36-127,521.61-25,842.54

Finding the Fourth Proportional to 85,011.36, 127,521.61 and 25,842.54

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Solution

The fourth proportional to 85,011.36, 127,521.61 and 25,842.54 is: 38,765.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,011.36 : 127,521.61 = 25,842.54 : x
  2. Step 2: Convert to fraction form
    85,011.36/127,521.61 = 25,842.54/x
  3. Step 3: Cross multiply
    85,011.36x = 127,521.61 × 25,842.54
  4. Step 4: Simplify right side
    85,011.36x = 3,295,482,720.89
  5. Step 5: Solve for x
    x = 3,295,482,720.89/85,011.36
  6. Step 6: Final answer
    x = 38,765.21

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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.