Home / 99,975.52-137,981.24-57,525.85

Finding the Fourth Proportional to 99,975.52, 137,981.24 and 57,525.85

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Solution

The fourth proportional to 99,975.52, 137,981.24 and 57,525.85 is: 79,394.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,975.52 : 137,981.24 = 57,525.85 : x
  2. Step 2: Convert to fraction form
    99,975.52/137,981.24 = 57,525.85/x
  3. Step 3: Cross multiply
    99,975.52x = 137,981.24 × 57,525.85
  4. Step 4: Simplify right side
    99,975.52x = 7,937,488,115.05
  5. Step 5: Solve for x
    x = 7,937,488,115.05/99,975.52
  6. Step 6: Final answer
    x = 79,394.32

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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.