Home / 70,949.52-97,909.16-39,121.36

Finding the Fourth Proportional to 70,949.52, 97,909.16 and 39,121.36

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Solution

The fourth proportional to 70,949.52, 97,909.16 and 39,121.36 is: 53,986.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,949.52 : 97,909.16 = 39,121.36 : x
  2. Step 2: Convert to fraction form
    70,949.52/97,909.16 = 39,121.36/x
  3. Step 3: Cross multiply
    70,949.52x = 97,909.16 × 39,121.36
  4. Step 4: Simplify right side
    70,949.52x = 3,830,339,495.66
  5. Step 5: Solve for x
    x = 3,830,339,495.66/70,949.52
  6. Step 6: Final answer
    x = 53,986.83

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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.