Home / 92,143.72-127,158.21-51,857.77

Finding the Fourth Proportional to 92,143.72, 127,158.21 and 51,857.77

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Solution

The fourth proportional to 92,143.72, 127,158.21 and 51,857.77 is: 71,563.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,143.72 : 127,158.21 = 51,857.77 : x
  2. Step 2: Convert to fraction form
    92,143.72/127,158.21 = 51,857.77/x
  3. Step 3: Cross multiply
    92,143.72x = 127,158.21 × 51,857.77
  4. Step 4: Simplify right side
    92,143.72x = 6,594,140,889.90
  5. Step 5: Solve for x
    x = 6,594,140,889.90/92,143.72
  6. Step 6: Final answer
    x = 71,563.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.