Home / 56,639.91-78,174.39-43,187.12

Finding the Fourth Proportional to 56,639.91, 78,174.39 and 43,187.12

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Solution

The fourth proportional to 56,639.91, 78,174.39 and 43,187.12 is: 59,606.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,639.91 : 78,174.39 = 43,187.12 : x
  2. Step 2: Convert to fraction form
    56,639.91/78,174.39 = 43,187.12/x
  3. Step 3: Cross multiply
    56,639.91x = 78,174.39 × 43,187.12
  4. Step 4: Simplify right side
    56,639.91x = 3,376,127,144.36
  5. Step 5: Solve for x
    x = 3,376,127,144.36/56,639.91
  6. Step 6: Final answer
    x = 59,606.86

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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.