Home / 77,458.45-106,832.40-56,028.58

Finding the Fourth Proportional to 77,458.45, 106,832.40 and 56,028.58

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Solution

The fourth proportional to 77,458.45, 106,832.40 and 56,028.58 is: 77,275.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,458.45 : 106,832.40 = 56,028.58 : x
  2. Step 2: Convert to fraction form
    77,458.45/106,832.40 = 56,028.58/x
  3. Step 3: Cross multiply
    77,458.45x = 106,832.40 × 56,028.58
  4. Step 4: Simplify right side
    77,458.45x = 5,985,667,593.43
  5. Step 5: Solve for x
    x = 5,985,667,593.43/77,458.45
  6. Step 6: Final answer
    x = 77,275.85

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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.