Home / 85,090.26-127,635.42-38,288.46

Finding the Fourth Proportional to 85,090.26, 127,635.42 and 38,288.46

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Solution

The fourth proportional to 85,090.26, 127,635.42 and 38,288.46 is: 57,432.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,090.26 : 127,635.42 = 38,288.46 : x
  2. Step 2: Convert to fraction form
    85,090.26/127,635.42 = 38,288.46/x
  3. Step 3: Cross multiply
    85,090.26x = 127,635.42 × 38,288.46
  4. Step 4: Simplify right side
    85,090.26x = 4,886,963,673.25
  5. Step 5: Solve for x
    x = 4,886,963,673.25/85,090.26
  6. Step 6: Final answer
    x = 57,432.70

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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.