Home / 99,039.58-136,683.96-56,589.88

Finding the Fourth Proportional to 99,039.58, 136,683.96 and 56,589.88

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Solution

The fourth proportional to 99,039.58, 136,683.96 and 56,589.88 is: 78,099.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,039.58 : 136,683.96 = 56,589.88 : x
  2. Step 2: Convert to fraction form
    99,039.58/136,683.96 = 56,589.88/x
  3. Step 3: Cross multiply
    99,039.58x = 136,683.96 × 56,589.88
  4. Step 4: Simplify right side
    99,039.58x = 7,734,928,894.32
  5. Step 5: Solve for x
    x = 7,734,928,894.32/99,039.58
  6. Step 6: Final answer
    x = 78,099.37

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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.