Home / 99,876.24-137,858.76-57,464.64

Finding the Fourth Proportional to 99,876.24, 137,858.76 and 57,464.64

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Solution

The fourth proportional to 99,876.24, 137,858.76 and 57,464.64 is: 79,318.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,876.24 : 137,858.76 = 57,464.64 : x
  2. Step 2: Convert to fraction form
    99,876.24/137,858.76 = 57,464.64/x
  3. Step 3: Cross multiply
    99,876.24x = 137,858.76 × 57,464.64
  4. Step 4: Simplify right side
    99,876.24x = 7,922,004,014.25
  5. Step 5: Solve for x
    x = 7,922,004,014.25/99,876.24
  6. Step 6: Final answer
    x = 79,318.20

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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.