Home / 76,676.17-105,854.62-53,776.31

Finding the Fourth Proportional to 76,676.17, 105,854.62 and 53,776.31

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Solution

The fourth proportional to 76,676.17, 105,854.62 and 53,776.31 is: 74,240.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,676.17 : 105,854.62 = 53,776.31 : x
  2. Step 2: Convert to fraction form
    76,676.17/105,854.62 = 53,776.31/x
  3. Step 3: Cross multiply
    76,676.17x = 105,854.62 × 53,776.31
  4. Step 4: Simplify right side
    76,676.17x = 5,692,470,448.41
  5. Step 5: Solve for x
    x = 5,692,470,448.41/76,676.17
  6. Step 6: Final answer
    x = 74,240.41

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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.