Home / 77,639.12-107,195.09-59,457.76

Finding the Fourth Proportional to 77,639.12, 107,195.09 and 59,457.76

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Solution

The fourth proportional to 77,639.12, 107,195.09 and 59,457.76 is: 82,092.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,639.12 : 107,195.09 = 59,457.76 : x
  2. Step 2: Convert to fraction form
    77,639.12/107,195.09 = 59,457.76/x
  3. Step 3: Cross multiply
    77,639.12x = 107,195.09 × 59,457.76
  4. Step 4: Simplify right side
    77,639.12x = 6,373,579,815.06
  5. Step 5: Solve for x
    x = 6,373,579,815.06/77,639.12
  6. Step 6: Final answer
    x = 82,092.38

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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.