Home / 77,844.66-107,451-57,695.10

Finding the Fourth Proportional to 77,844.66, 107,451 and 57,695.10

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Solution

The fourth proportional to 77,844.66, 107,451 and 57,695.10 is: 79,638.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,844.66 : 107,451 = 57,695.10 : x
  2. Step 2: Convert to fraction form
    77,844.66/107,451 = 57,695.10/x
  3. Step 3: Cross multiply
    77,844.66x = 107,451 × 57,695.10
  4. Step 4: Simplify right side
    77,844.66x = 6,199,396,190.10
  5. Step 5: Solve for x
    x = 6,199,396,190.10/77,844.66
  6. Step 6: Final answer
    x = 79,638.04

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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.