Home / 85,071.38-127,528.11-37,661.18

Finding the Fourth Proportional to 85,071.38, 127,528.11 and 37,661.18

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Solution

The fourth proportional to 85,071.38, 127,528.11 and 37,661.18 is: 56,456.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,071.38 : 127,528.11 = 37,661.18 : x
  2. Step 2: Convert to fraction form
    85,071.38/127,528.11 = 37,661.18/x
  3. Step 3: Cross multiply
    85,071.38x = 127,528.11 × 37,661.18
  4. Step 4: Simplify right side
    85,071.38x = 4,802,859,105.77
  5. Step 5: Solve for x
    x = 4,802,859,105.77/85,071.38
  6. Step 6: Final answer
    x = 56,456.81

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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.