Home / 99,629.75-137,488.94-54,307.82

Finding the Fourth Proportional to 99,629.75, 137,488.94 and 54,307.82

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Solution

The fourth proportional to 99,629.75, 137,488.94 and 54,307.82 is: 74,944.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,629.75 : 137,488.94 = 54,307.82 : x
  2. Step 2: Convert to fraction form
    99,629.75/137,488.94 = 54,307.82/x
  3. Step 3: Cross multiply
    99,629.75x = 137,488.94 × 54,307.82
  4. Step 4: Simplify right side
    99,629.75x = 7,466,723,646.53
  5. Step 5: Solve for x
    x = 7,466,723,646.53/99,629.75
  6. Step 6: Final answer
    x = 74,944.72

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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.