Home / 85,111.32-127,666.92-38,309.52

Finding the Fourth Proportional to 85,111.32, 127,666.92 and 38,309.52

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Solution

The fourth proportional to 85,111.32, 127,666.92 and 38,309.52 is: 57,464.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,111.32 : 127,666.92 = 38,309.52 : x
  2. Step 2: Convert to fraction form
    85,111.32/127,666.92 = 38,309.52/x
  3. Step 3: Cross multiply
    85,111.32x = 127,666.92 × 38,309.52
  4. Step 4: Simplify right side
    85,111.32x = 4,890,858,425.08
  5. Step 5: Solve for x
    x = 4,890,858,425.08/85,111.32
  6. Step 6: Final answer
    x = 57,464.25

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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.