Home / 78,425.19-108,226.38-44,433.61

Finding the Fourth Proportional to 78,425.19, 108,226.38 and 44,433.61

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Solution

The fourth proportional to 78,425.19, 108,226.38 and 44,433.61 is: 61,318.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,425.19 : 108,226.38 = 44,433.61 : x
  2. Step 2: Convert to fraction form
    78,425.19/108,226.38 = 44,433.61/x
  3. Step 3: Cross multiply
    78,425.19x = 108,226.38 × 44,433.61
  4. Step 4: Simplify right side
    78,425.19x = 4,808,887,997.33
  5. Step 5: Solve for x
    x = 4,808,887,997.33/78,425.19
  6. Step 6: Final answer
    x = 61,318.16

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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.