Home / 92,861.73-128,156.94-57,064.19

Finding the Fourth Proportional to 92,861.73, 128,156.94 and 57,064.19

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Solution

The fourth proportional to 92,861.73, 128,156.94 and 57,064.19 is: 78,753.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,861.73 : 128,156.94 = 57,064.19 : x
  2. Step 2: Convert to fraction form
    92,861.73/128,156.94 = 57,064.19/x
  3. Step 3: Cross multiply
    92,861.73x = 128,156.94 × 57,064.19
  4. Step 4: Simplify right side
    92,861.73x = 7,313,171,333.19
  5. Step 5: Solve for x
    x = 7,313,171,333.19/92,861.73
  6. Step 6: Final answer
    x = 78,753.34

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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.