Home / 85,287.80-127,956.30-26,132.19

Finding the Fourth Proportional to 85,287.80, 127,956.30 and 26,132.19

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Solution

The fourth proportional to 85,287.80, 127,956.30 and 26,132.19 is: 39,205.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,287.80 : 127,956.30 = 26,132.19 : x
  2. Step 2: Convert to fraction form
    85,287.80/127,956.30 = 26,132.19/x
  3. Step 3: Cross multiply
    85,287.80x = 127,956.30 × 26,132.19
  4. Step 4: Simplify right side
    85,287.80x = 3,343,778,343.30
  5. Step 5: Solve for x
    x = 3,343,778,343.30/85,287.80
  6. Step 6: Final answer
    x = 39,205.82

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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.