Home / 99,074.89-136,723.35-56,634.33

Finding the Fourth Proportional to 99,074.89, 136,723.35 and 56,634.33

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Solution

The fourth proportional to 99,074.89, 136,723.35 and 56,634.33 is: 78,155.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,074.89 : 136,723.35 = 56,634.33 : x
  2. Step 2: Convert to fraction form
    99,074.89/136,723.35 = 56,634.33/x
  3. Step 3: Cross multiply
    99,074.89x = 136,723.35 × 56,634.33
  4. Step 4: Simplify right side
    99,074.89x = 7,743,235,664.41
  5. Step 5: Solve for x
    x = 7,743,235,664.41/99,074.89
  6. Step 6: Final answer
    x = 78,155.38

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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.