Home / 99,074.64-136,723.01-56,634.08

Finding the Fourth Proportional to 99,074.64, 136,723.01 and 56,634.08

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Solution

The fourth proportional to 99,074.64, 136,723.01 and 56,634.08 is: 78,155.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,074.64 : 136,723.01 = 56,634.08 : x
  2. Step 2: Convert to fraction form
    99,074.64/136,723.01 = 56,634.08/x
  3. Step 3: Cross multiply
    99,074.64x = 136,723.01 × 56,634.08
  4. Step 4: Simplify right side
    99,074.64x = 7,743,181,944.82
  5. Step 5: Solve for x
    x = 7,743,181,944.82/99,074.64
  6. Step 6: Final answer
    x = 78,155.03

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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.