Home / 99,650.07-137,522.55-57,211.34

Finding the Fourth Proportional to 99,650.07, 137,522.55 and 57,211.34

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Solution

The fourth proportional to 99,650.07, 137,522.55 and 57,211.34 is: 78,954.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,650.07 : 137,522.55 = 57,211.34 : x
  2. Step 2: Convert to fraction form
    99,650.07/137,522.55 = 57,211.34/x
  3. Step 3: Cross multiply
    99,650.07x = 137,522.55 × 57,211.34
  4. Step 4: Simplify right side
    99,650.07x = 7,867,848,678.10
  5. Step 5: Solve for x
    x = 7,867,848,678.10/99,650.07
  6. Step 6: Final answer
    x = 78,954.77

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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.