Home / 85,135.44-127,702.92-38,333.52

Finding the Fourth Proportional to 85,135.44, 127,702.92 and 38,333.52

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Solution

The fourth proportional to 85,135.44, 127,702.92 and 38,333.52 is: 57,500.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,135.44 : 127,702.92 = 38,333.52 : x
  2. Step 2: Convert to fraction form
    85,135.44/127,702.92 = 38,333.52/x
  3. Step 3: Cross multiply
    85,135.44x = 127,702.92 × 38,333.52
  4. Step 4: Simplify right side
    85,135.44x = 4,895,302,437.88
  5. Step 5: Solve for x
    x = 4,895,302,437.88/85,135.44
  6. Step 6: Final answer
    x = 57,500.17

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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.